Gnutls: gnutls: certificate validation bypass due to improper handling of uri and srv sans
Priority LOW 31CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Low · High · None
- Fix status
- Partial Red Hat: 39 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-295.
Summary
A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier (URI) or Service (SRV) Subject Alternative Names (SANs). This could cause the certificate validation process to incorrectly fall back to checking DNS hostnames against the Common Name (CN), potentially allowing the attacker to spoof legitimate services or intercept sensitive information.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00374 31st percentileScored 2026-11-07
Fix Partial Red Hat: 28 advisoriesRed Hat: 39 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | gnutls | all versions | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 10 | — | 3.8.10-4.el10_2 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | — | 3.8.9-9.el10_0.19 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION | — | 2.12.23-22.el6_10.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — | 3.3.29-9.el7_9.2 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 3.6.16-8.el8_10.6 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 3.6.16-8.el8_10.6 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | 3.6.14-10.el8_4.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | 4.13-3.el8_4.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — | 3.6.14-10.el8_4.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — | 4.13-3.el8_4.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | 3.6.16-5.el8_6.5 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | 4.13-3.el8_6.2 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — | 3.6.16-5.el8_6.5 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — | 4.13-3.el8_6.2 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — | 3.6.16-7.el8_8.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — | 4.13-4.el8_8.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — | 3.6.16-7.el8_8.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — | 4.13-4.el8_8.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 3.8.10-4.el9_8 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 3.8.10-4.el9_8 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — | 3.7.6-21.el9_2.7 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | — | 3.8.3-4.el9_4.6 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — | 3.8.3-6.el9_6.4 | Patch available | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4.20 | — | 4.20.9.6.202610242033-0 | Patch available | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4.21 | — | 4.21.9.6.202610241345-0 | Patch available | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4.22 | — | 4.22.9.8.202610241758-0 | Patch available | CNA |
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.17 | — | 1791371080 | Patch available | CNA |
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.17 | — | 1791371069 | Patch available | CNA |
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.17 | — | 1791788287 | Patch available | CNA |
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.17 | — | 1791970484 | Patch available | CNA |
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 | — | 1791459707 | Patch available | CNA |
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 | — | 1791459711 | Patch available | CNA |
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 | — | 1791459759 | Patch available | CNA |
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 | — | 1789029076 | Patch available | CNA |
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 | — | 1791966259 | Patch available | CNA |
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 | — | 1790598593 | Patch available | CNA |
| Red Hat | Red Hat Discovery 2 | — | 1782159791 | Patch available | CNA |
| Red Hat | Red Hat Discovery 2 | — | 1782166952 | Patch available | CNA |
| Red Hat | Red Hat Hardened Images | — | 3.8.13-1.hum1 | Patch available | CNA |
| Red Hat | Red Hat OpenShift AI 3.4 | — | 1790703542 | Patch available | CNA |
| Red Hat | Red Hat Update Infrastructure 5 | — | 1781525684 | Patch available | CNA |
| Red Hat | Red Hat Update Infrastructure 5 | — | 1781525671 | Patch available | CNA |
| Red Hat | Red Hat Update Infrastructure 5 | — | 1781525693 | Patch available | CNA |
| Red Hat | Red Hat Update Infrastructure 5 | — | 1781525739 | Patch available | CNA |
| Red Hat | Red Hat Update Infrastructure 5 | — | 1787241211 | Patch available | CNA |
| Red Hat | Red Hat Update Infrastructure 5 | — | 1787135742 | Patch available | CNA |
| Red Hat | Red Hat Update Infrastructure 5 | — | 1787241260 | Patch available | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | Not affected | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | No fix listed | CNA |
| Red Hat | Red Hat OpenShift Container Platform 5 | — | — | No fix listed | CNA |
- gnutls Vendor— Affected all versions Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in 3.8.10-4.el10_2 Patch available CNA
- Red Hat Enterprise Linux 10.0 Extended Update Support VendorRed Hat Affected — Fixed in 3.8.9-9.el10_0.19 Patch available CNA
- Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION VendorRed Hat Affected — Fixed in 2.12.23-22.el6_10.1 Patch available CNA
- Red Hat Enterprise Linux 7 Extended Lifecycle Support VendorRed Hat Affected — Fixed in 3.3.29-9.el7_9.2 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 3.6.16-8.el8_10.6 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 3.6.16-8.el8_10.6 Patch available CNA
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 3.6.14-10.el8_4.1 Patch available CNA
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 4.13-3.el8_4.1 Patch available CNA
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On VendorRed Hat Affected — Fixed in 3.6.14-10.el8_4.1 Patch available CNA
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On VendorRed Hat Affected — Fixed in 4.13-3.el8_4.1 Patch available CNA
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 3.6.16-5.el8_6.5 Patch available CNA
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 4.13-3.el8_6.2 Patch available CNA
- Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On VendorRed Hat Affected — Fixed in 3.6.16-5.el8_6.5 Patch available CNA
- Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On VendorRed Hat Affected — Fixed in 4.13-3.el8_6.2 Patch available CNA
- Red Hat Enterprise Linux 8.8 Telecommunications Update Service VendorRed Hat Affected — Fixed in 3.6.16-7.el8_8.4 Patch available CNA
- Red Hat Enterprise Linux 8.8 Telecommunications Update Service VendorRed Hat Affected — Fixed in 4.13-4.el8_8.1 Patch available CNA
- Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 3.6.16-7.el8_8.4 Patch available CNA
- Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 4.13-4.el8_8.1 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 3.8.10-4.el9_8 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 3.8.10-4.el9_8 Patch available CNA
- Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 3.7.6-21.el9_2.7 Patch available CNA
- Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 3.8.3-4.el9_4.6 Patch available CNA
- Red Hat Enterprise Linux 9.6 Extended Update Support VendorRed Hat Affected — Fixed in 3.8.3-6.el9_6.4 Patch available CNA
- Red Hat OpenShift Container Platform 4.20 VendorRed Hat Affected — Fixed in 4.20.9.6.202610242033-0 Patch available CNA
- Red Hat OpenShift Container Platform 4.21 VendorRed Hat Affected — Fixed in 4.21.9.6.202610241345-0 Patch available CNA
- Red Hat OpenShift Container Platform 4.22 VendorRed Hat Affected — Fixed in 4.22.9.8.202610241758-0 Patch available CNA
- Cert Manager support for Red Hat OpenShift release 1.17 VendorRed Hat Affected — Fixed in 1791371080 Patch available CNA
- Cert Manager support for Red Hat OpenShift release 1.17 VendorRed Hat Affected — Fixed in 1791371069 Patch available CNA
- Cert Manager support for Red Hat OpenShift release 1.17 VendorRed Hat Affected — Fixed in 1791788287 Patch available CNA
- Cert Manager support for Red Hat OpenShift release 1.17 VendorRed Hat Affected — Fixed in 1791970484 Patch available CNA
- Cert Manager support for Red Hat OpenShift release 1.18 VendorRed Hat Affected — Fixed in 1791459707 Patch available CNA
- Cert Manager support for Red Hat OpenShift release 1.18 VendorRed Hat Affected — Fixed in 1791459711 Patch available CNA
- Cert Manager support for Red Hat OpenShift release 1.18 VendorRed Hat Affected — Fixed in 1791459759 Patch available CNA
- Cert Manager support for Red Hat OpenShift release 1.18 VendorRed Hat Affected — Fixed in 1789029076 Patch available CNA
- Cert Manager support for Red Hat OpenShift release 1.18 VendorRed Hat Affected — Fixed in 1791966259 Patch available CNA
- Cert Manager support for Red Hat OpenShift release 1.20 VendorRed Hat Affected — Fixed in 1790598593 Patch available CNA
- Red Hat Discovery 2 VendorRed Hat Affected — Fixed in 1782159791 Patch available CNA
- Red Hat Discovery 2 VendorRed Hat Affected — Fixed in 1782166952 Patch available CNA
- Red Hat Hardened Images VendorRed Hat Affected — Fixed in 3.8.13-1.hum1 Patch available CNA
- Red Hat OpenShift AI 3.4 VendorRed Hat Affected — Fixed in 1790703542 Patch available CNA
- Red Hat Update Infrastructure 5 VendorRed Hat Affected — Fixed in 1781525684 Patch available CNA
- Red Hat Update Infrastructure 5 VendorRed Hat Affected — Fixed in 1781525671 Patch available CNA
- Red Hat Update Infrastructure 5 VendorRed Hat Affected — Fixed in 1781525693 Patch available CNA
- Red Hat Update Infrastructure 5 VendorRed Hat Affected — Fixed in 1781525739 Patch available CNA
- Red Hat Update Infrastructure 5 VendorRed Hat Affected — Fixed in 1787241211 Patch available CNA
- Red Hat Update Infrastructure 5 VendorRed Hat Affected — Fixed in 1787135742 Patch available CNA
- Red Hat Update Infrastructure 5 VendorRed Hat Affected — Fixed in 1787241260 Patch available CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat OpenShift Container Platform 5 VendorRed Hat Affected — Fixed in — No fix listed CNA
CPE names CNA · 38
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/o:redhat:enterprise_linux:10.2 | 10.2 | — | Red Hat |
| cpe:/o:redhat:enterprise_linux_eus:10.0 | 10.0 | — | Red Hat |
| cpe:/o:redhat:rhel_els:6 | 6 | — | Red Hat |
| cpe:/o:redhat:rhel_els:7 | 7 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:8::appstream | 8 | — | Red Hat |
| cpe:/o:redhat:enterprise_linux:8::baseos | 8 | — | Red Hat |
| cpe:/a:redhat:rhel_aus:8.4::appstream | 8.4 | — | Red Hat |
| cpe:/a:redhat:rhel_eus_long_life:8.4::appstream | 8.4 | — | Red Hat |
| cpe:/o:redhat:rhel_aus:8.4::baseos | 8.4 | — | Red Hat |
| cpe:/o:redhat:rhel_eus_long_life:8.4::baseos | 8.4 | — | Red Hat |
- cpe:/o:redhat:enterprise_linux:10.2 Versions 10.2 — ·Red Hat
- cpe:/o:redhat:enterprise_linux_eus:10.0 Versions 10.0 — ·Red Hat
- cpe:/o:redhat:rhel_els:6 Versions 6 — ·Red Hat
- cpe:/o:redhat:rhel_els:7 Versions 7 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:8::appstream Versions 8 — ·Red Hat
- cpe:/o:redhat:enterprise_linux:8::baseos Versions 8 — ·Red Hat
- cpe:/a:redhat:rhel_aus:8.4::appstream Versions 8.4 — ·Red Hat
- cpe:/a:redhat:rhel_eus_long_life:8.4::appstream Versions 8.4 — ·Red Hat
- cpe:/o:redhat:rhel_aus:8.4::baseos Versions 8.4 — ·Red Hat
- cpe:/o:redhat:rhel_eus_long_life:8.4::baseos Versions 8.4 — ·Red Hat
Show 28 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/a:redhat:rhel_aus:8.6::appstream | 8.6 | — | Red Hat |
| cpe:/a:redhat:rhel_eus_long_life:8.6::appstream | 8.6 | — | Red Hat |
| cpe:/o:redhat:rhel_aus:8.6::baseos | 8.6 | — | Red Hat |
| cpe:/o:redhat:rhel_eus_long_life:8.6::baseos | 8.6 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:8.8::appstream | 8.8 | — | Red Hat |
| cpe:/a:redhat:rhel_tus:8.8::appstream | 8.8 | — | Red Hat |
| cpe:/o:redhat:rhel_e4s:8.8::baseos | 8.8 | — | Red Hat |
| cpe:/o:redhat:rhel_tus:8.8::baseos | 8.8 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:9::appstream | 9 | — | Red Hat |
| cpe:/o:redhat:enterprise_linux:9::baseos | 9 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:9.2::appstream | 9.2 | — | Red Hat |
| cpe:/o:redhat:rhel_e4s:9.2::baseos | 9.2 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:9.4::appstream | 9.4 | — | Red Hat |
| cpe:/o:redhat:rhel_e4s:9.4::baseos | 9.4 | — | Red Hat |
| cpe:/a:redhat:rhel_eus:9.6::appstream | 9.6 | — | Red Hat |
| cpe:/o:redhat:rhel_eus:9.6::baseos | 9.6 | — | Red Hat |
| cpe:/a:redhat:openshift:4.20::el9 | 4.20 | — | Red Hat |
| cpe:/a:redhat:openshift:4.21::el9 | 4.21 | — | Red Hat |
| cpe:/a:redhat:openshift:4.22::el9 | 4.22 | — | Red Hat |
| cpe:/a:redhat:cert_manager:1.17::el9 | 1.17 | — | Red Hat |
| cpe:/a:redhat:cert_manager:1.18::el9 | 1.18 | — | Red Hat |
| cpe:/a:redhat:cert_manager:1.20::el9 | 1.20 | — | Red Hat |
| cpe:/a:redhat:discovery:2::el9 | 2 | — | Red Hat |
| cpe:/a:redhat:hummingbird:1 | 1 | — | Red Hat |
| cpe:/a:redhat:openshift_ai:3.4::el9 | 3.4 | — | Red Hat |
| cpe:/a:redhat:rhui:5::el9 | 5 | — | Red Hat |
| cpe:/a:redhat:openshift:4 | 4 | — | Red Hat |
| cpe:/a:redhat:openshift:5 | 5 | — | Red Hat |
- cpe:/a:redhat:rhel_aus:8.6::appstream Versions 8.6 — ·Red Hat
- cpe:/a:redhat:rhel_eus_long_life:8.6::appstream Versions 8.6 — ·Red Hat
- cpe:/o:redhat:rhel_aus:8.6::baseos Versions 8.6 — ·Red Hat
- cpe:/o:redhat:rhel_eus_long_life:8.6::baseos Versions 8.6 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:8.8::appstream Versions 8.8 — ·Red Hat
- cpe:/a:redhat:rhel_tus:8.8::appstream Versions 8.8 — ·Red Hat
- cpe:/o:redhat:rhel_e4s:8.8::baseos Versions 8.8 — ·Red Hat
- cpe:/o:redhat:rhel_tus:8.8::baseos Versions 8.8 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:9::appstream Versions 9 — ·Red Hat
- cpe:/o:redhat:enterprise_linux:9::baseos Versions 9 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:9.2::appstream Versions 9.2 — ·Red Hat
- cpe:/o:redhat:rhel_e4s:9.2::baseos Versions 9.2 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:9.4::appstream Versions 9.4 — ·Red Hat
- cpe:/o:redhat:rhel_e4s:9.4::baseos Versions 9.4 — ·Red Hat
- cpe:/a:redhat:rhel_eus:9.6::appstream Versions 9.6 — ·Red Hat
- cpe:/o:redhat:rhel_eus:9.6::baseos Versions 9.6 — ·Red Hat
- cpe:/a:redhat:openshift:4.20::el9 Versions 4.20 — ·Red Hat
- cpe:/a:redhat:openshift:4.21::el9 Versions 4.21 — ·Red Hat
- cpe:/a:redhat:openshift:4.22::el9 Versions 4.22 — ·Red Hat
- cpe:/a:redhat:cert_manager:1.17::el9 Versions 1.17 — ·Red Hat
- cpe:/a:redhat:cert_manager:1.18::el9 Versions 1.18 — ·Red Hat
- cpe:/a:redhat:cert_manager:1.20::el9 Versions 1.20 — ·Red Hat
- cpe:/a:redhat:discovery:2::el9 Versions 2 — ·Red Hat
- cpe:/a:redhat:hummingbird:1 Versions 1 — ·Red Hat
- cpe:/a:redhat:openshift_ai:3.4::el9 Versions 3.4 — ·Red Hat
- cpe:/a:redhat:rhui:5::el9 Versions 5 — ·Red Hat
- cpe:/a:redhat:openshift:4 Versions 4 — ·Red Hat
- cpe:/a:redhat:openshift:5 Versions 5 — ·Red Hat
Remediation
Red Hat 28 advisories
- RHSA-2026:94442 Released 2026-11-03 · Red Hat rating Moderategnutls security update
- Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) gnutls-2.12.23-22.el6_10.1, gnutls-devel-2.12.23-22.el6_10.1, gnutls-utils-2.12.23-22.el6_10.1
- Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) gnutls-guile-2.12.23-22.el6_10.1
- RHSA-2026:89197 Released 2026-10-27 · Red Hat rating CriticalOpenShift Container Platform 4.22.20 bug fix and security update
- Red Hat OpenShift Container Platform 4.22 rhcos-aarch64-4.22.9.8.202610241758-0, rhcos-ppc64le-4.22.9.8.202610241758-0, rhcos-s390x-4.22.9.8.202610241758-0 +1
- RHSA-2026:89232 Released 2026-10-27 · Red Hat rating CriticalOpenShift Container Platform 4.21.40 bug fix and security update
- Red Hat OpenShift Container Platform 4.21 rhcos-aarch64-4.21.9.6.202610241345-0, rhcos-ppc64le-4.21.9.6.202610241345-0, rhcos-s390x-4.21.9.6.202610241345-0 +1
Show 25 more Red Hat advisories
- RHSA-2026:89333 Released 2026-10-27 · Red Hat rating CriticalOpenShift Container Platform 4.20.44 bug fix and security update
- Red Hat OpenShift Container Platform 4.20 rhcos-aarch64-4.20.9.6.202610242033-0, rhcos-ppc64le-4.20.9.6.202610242033-0, rhcos-s390x-4.20.9.6.202610242033-0 +1
- RHSA-2026:82888 Released 2026-10-14 · Red Hat rating Importantcert-manager Operator for Red Hat OpenShift 1.17.2
- Cert Manager support for Red Hat OpenShift release 1.17 registry.redhat.io/cert-manager/cert-manager-operator-bundle
- RHSA-2026:82857 Released 2026-10-14 · Red Hat rating Importantcert-manager Operator for Red Hat OpenShift 1.18.2
- Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/cert-manager-operator-bundle
- RHSA-2026:82372 Released 2026-10-13 · Red Hat rating Importantcert-manager Operator for Red Hat OpenShift 1.18.2
- Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/cert-manager-operator-rhel9
- RHSA-2026:82354 Released 2026-10-13 · Red Hat rating Importantcert-manager Operator for Red Hat OpenShift 1.18.2
- Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/cert-manager-istio-csr-rhel9
- RHSA-2026:82347 Released 2026-10-13 · Red Hat rating Importantcert-manager Operator for Red Hat OpenShift 1.18.2
- Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/jetstack-cert-manager-acmesolver-rhel9, registry.redhat.io/cert-manager/jetstack-cert-manager-rhel9
- RHSA-2026:82322 Released 2026-10-13 · Red Hat rating Importantcert-manager Operator for Red Hat OpenShift 1.17.2
- Cert Manager support for Red Hat OpenShift release 1.17 registry.redhat.io/cert-manager/cert-manager-operator-rhel9
- RHSA-2026:82304 Released 2026-10-13 · Red Hat rating Importantcert-manager Operator for Red Hat OpenShift 1.17.2
- Cert Manager support for Red Hat OpenShift release 1.17 registry.redhat.io/cert-manager/jetstack-cert-manager-acmesolver-rhel9, registry.redhat.io/cert-manager/jetstack-cert-manager-rhel9
- RHSA-2026:74674 Released 2026-10-01 · Red Hat rating ImportantRed Hat AI Base Images 3.4.3 (Neuron)
- Red Hat OpenShift AI 3.4 registry.redhat.io/rhai/base-image-neuron-rhel9
- RHSA-2026:72502 Released 2026-09-28 · Red Hat rating Importantcert-manager Operator for Red Hat OpenShift 1.20.1
- Cert Manager support for Red Hat OpenShift release 1.20 registry.redhat.io/cert-manager/cert-manager-trust-manager-rhel9
- RHSA-2026:58981 Released 2026-08-24 · Red Hat rating CriticalRed Hat Update Infrastructure 5.3 Technology Preview security update
- Red Hat Update Infrastructure 5 registry.redhat.io/rhui5/cds-kubernetes-tp-rhel9, registry.redhat.io/rhui5/installer-tp-rhel9, registry.redhat.io/rhui5/rhua-tp-rhel9
- RHSA-2026:43575 Released 2026-07-22 · Red Hat rating Moderategnutls security update
- Red Hat Enterprise Linux Server (v. 7 ELS) gnutls-3.3.29-9.el7_9.2, gnutls-3.3.29-9.el7_9.2.ppc, gnutls-c++-3.3.29-9.el7_9.2 +6
- RHSA-2026:41921 Released 2026-07-20 · Red Hat rating Importantgnutls security update
- Red Hat Enterprise Linux AppStream E4S (v.9.2) gnutls-c++-3.7.6-21.el9_2.7, gnutls-dane-3.7.6-21.el9_2.7, gnutls-devel-3.7.6-21.el9_2.7 +1
- Red Hat Enterprise Linux BaseOS E4S (v.9.2) gnutls-3.7.6-21.el9_2.7
- RHSA-2026:33125 Released 2026-06-29 · Red Hat rating Importantgnutls and libtasn1 security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) gnutls-c++-3.6.14-10.el8_4.1, gnutls-dane-3.6.14-10.el8_4.1, gnutls-devel-3.6.14-10.el8_4.1 +3
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) gnutls-c++-3.6.14-10.el8_4.1, gnutls-dane-3.6.14-10.el8_4.1, gnutls-devel-3.6.14-10.el8_4.1 +3
- Red Hat Enterprise Linux BaseOS AUS (v.8.4) gnutls-3.6.14-10.el8_4.1, libtasn1-4.13-3.el8_4.1
- Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) gnutls-3.6.14-10.el8_4.1, libtasn1-4.13-3.el8_4.1
- RHSA-2026:32962 Released 2026-06-29 · Red Hat rating Importantgnutls security update
- Red Hat Enterprise Linux AppStream E4S (v.9.4) gnutls-c++-3.8.3-4.el9_4.6, gnutls-dane-3.8.3-4.el9_4.6, gnutls-devel-3.8.3-4.el9_4.6 +1
- Red Hat Enterprise Linux BaseOS E4S (v.9.4) gnutls-3.8.3-4.el9_4.6
- RHSA-2026:30849 Released 2026-06-29 · Red Hat rating Importantgnutls and libtasn1 security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) gnutls-c++-3.6.16-5.el8_6.5, gnutls-dane-3.6.16-5.el8_6.5, gnutls-devel-3.6.16-5.el8_6.5 +3
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) gnutls-c++-3.6.16-5.el8_6.5, gnutls-dane-3.6.16-5.el8_6.5, gnutls-devel-3.6.16-5.el8_6.5 +3
- Red Hat Enterprise Linux BaseOS AUS (v.8.6) gnutls-3.6.16-5.el8_6.5, libtasn1-4.13-3.el8_6.2
- Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) gnutls-3.6.16-5.el8_6.5, libtasn1-4.13-3.el8_6.2
- RHSA-2026:30850 Released 2026-06-29 · Red Hat rating Importantgnutls and libtasn1 security update
- Red Hat Enterprise Linux AppStream E4S (v.8.8) gnutls-c++-3.6.16-7.el8_8.4, gnutls-dane-3.6.16-7.el8_8.4, gnutls-devel-3.6.16-7.el8_8.4 +3
- Red Hat Enterprise Linux AppStream TUS (v.8.8) gnutls-c++-3.6.16-7.el8_8.4, gnutls-dane-3.6.16-7.el8_8.4, gnutls-devel-3.6.16-7.el8_8.4 +3
- Red Hat Enterprise Linux BaseOS E4S (v.8.8) gnutls-3.6.16-7.el8_8.4, libtasn1-4.13-4.el8_8.1
- Red Hat Enterprise Linux BaseOS TUS (v.8.8) gnutls-3.6.16-7.el8_8.4, libtasn1-4.13-4.el8_8.1
- RHSA-2026:30004 Released 2026-06-25 · Red Hat rating Importantgnutls security update
- Red Hat Enterprise Linux AppStream EUS (v.9.6) gnutls-c++-3.8.3-6.el9_6.4, gnutls-dane-3.8.3-6.el9_6.4, gnutls-devel-3.8.3-6.el9_6.4 +1
- Red Hat Enterprise Linux BaseOS EUS (v.9.6) gnutls-3.8.3-6.el9_6.4
- RHSA-2026:29197 Released 2026-06-24 · Red Hat rating ImportantA Subscription Management tool for finding and reporting Red Hat product usage
- Red Hat Discovery 2 registry.redhat.io/discovery/discovery-server-rhel9, registry.redhat.io/discovery/discovery-ui-rhel9
- RHSA-2026:26409 Released 2026-06-16 · Red Hat rating Importantgnutls security update
- Red Hat Enterprise Linux AppStream EUS (v. 10.0) gnutls-c++-3.8.9-9.el10_0.19, gnutls-dane-3.8.9-9.el10_0.19, gnutls-devel-3.8.9-9.el10_0.19 +2
- Red Hat Enterprise Linux BaseOS EUS (v. 10.0) gnutls-3.8.9-9.el10_0.19
- RHSA-2026:26319 Released 2026-06-16 · Red Hat rating ImportantRed Hat Update Infrastructure 5.2 security update
- Red Hat Update Infrastructure 5 registry.redhat.io/rhui5/cds-rhel9, registry.redhat.io/rhui5/haproxy-rhel9, registry.redhat.io/rhui5/installer-rhel9 +1
- RHSA-2026:20612 Released 2026-05-26 · Red Hat rating Importantgnutls security update
- Red Hat Enterprise Linux AppStream (v. 9) gnutls-c++-3.8.10-4.el9_8, gnutls-dane-3.8.10-4.el9_8, gnutls-devel-3.8.10-4.el9_8 +1
- Red Hat Enterprise Linux BaseOS (v. 9) gnutls-3.8.10-4.el9_8
- RHSA-2026:20613 Released 2026-05-26 · Red Hat rating Importantgnutls security update
- Red Hat Enterprise Linux AppStream (v. 10) gnutls-c++-3.8.10-4.el10_2, gnutls-dane-3.8.10-4.el10_2, gnutls-devel-3.8.10-4.el10_2 +2
- Red Hat Enterprise Linux BaseOS (v. 10) gnutls-3.8.10-4.el10_2
- RHSA-2026:20611 Released 2026-05-26 · Red Hat rating Importantgnutls security update
- Red Hat Enterprise Linux AppStream (v. 8) gnutls-c++-3.6.16-8.el8_10.6, gnutls-dane-3.6.16-8.el8_10.6, gnutls-devel-3.6.16-8.el8_10.6 +1
- Red Hat Enterprise Linux BaseOS (v. 8) gnutls-3.6.16-8.el8_10.6
- RHSA-2026:13274 Released 2026-05-02 · Red Hat rating ImportantRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images gnutls-3.8.13-1.hum1@aarch64, gnutls-3.8.13-1.hum1@src, gnutls-3.8.13-1.hum1@x86_64 +14
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet |
| Cert Manager support for Red Hat OpenShift release 1.17 | Fixed | RHSA-2026:82304, RHSA-2026:82322, RHSA-2026:82888 |
| Cert Manager support for Red Hat OpenShift release 1.18 | Fixed | RHSA-2026:82347, RHSA-2026:82354, RHSA-2026:82372, RHSA-2026:82857 |
| Cert Manager support for Red Hat OpenShift release 1.20 | Fixed | RHSA-2026:72502 |
| Red Hat Discovery 2 | Fixed | RHSA-2026:29197 |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:20613 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2026:20611 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2026:20612 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2026:33125 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2026:30849 |
| Red Hat Enterprise Linux AppStream E4S (v.8.8) | Fixed | RHSA-2026:30850 |
| Red Hat Enterprise Linux AppStream E4S (v.9.2) | Fixed | RHSA-2026:41921 |
| Red Hat Enterprise Linux AppStream E4S (v.9.4) | Fixed | RHSA-2026:32962 |
| Red Hat Enterprise Linux AppStream EUS (v. 10.0) | Fixed | RHSA-2026:26409 |
| Red Hat Enterprise Linux AppStream EUS (v.9.6) | Fixed | RHSA-2026:30004 |
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) | Fixed | RHSA-2026:33125 |
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) | Fixed | RHSA-2026:30849 |
| Red Hat Enterprise Linux AppStream TUS (v.8.8) | Fixed | RHSA-2026:30850 |
| Red Hat Enterprise Linux BaseOS (v. 10) | Fixed | RHSA-2026:20613 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2026:20611 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2026:20612 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.4) | Fixed | RHSA-2026:33125 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.6) | Fixed | RHSA-2026:30849 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.8) | Fixed | RHSA-2026:30850 |
| Red Hat Enterprise Linux BaseOS E4S (v.9.2) | Fixed | RHSA-2026:41921 |
| Red Hat Enterprise Linux BaseOS E4S (v.9.4) | Fixed | RHSA-2026:32962 |
| Red Hat Enterprise Linux BaseOS EUS (v. 10.0) | Fixed | RHSA-2026:26409 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.6) | Fixed | RHSA-2026:30004 |
| Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) | Fixed | RHSA-2026:33125 |
| Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) | Fixed | RHSA-2026:30849 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.8) | Fixed | RHSA-2026:30850 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2026:43575 |
| Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | Fixed | RHSA-2026:94442 |
| Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) | Fixed | RHSA-2026:94442 |
| Red Hat Hardened Images | Fixed | RHSA-2026:13274 |
| Red Hat OpenShift AI 3.4 | Fixed | RHSA-2026:74674 |
| Red Hat OpenShift Container Platform 4.20 | Fixed | RHSA-2026:89333 |
| Red Hat OpenShift Container Platform 4.21 | Fixed | RHSA-2026:89232 |
| Red Hat OpenShift Container Platform 4.22 | Fixed | RHSA-2026:89197 |
| Red Hat Update Infrastructure 5 | Fixed | RHSA-2026:26319, RHSA-2026:58981 |
Not affected: 21 products
- Red Hat Enterprise Linux AppStream AUS (v.8.4)
- Red Hat Enterprise Linux AppStream AUS (v.8.6)
- Red Hat Enterprise Linux AppStream E4S (v.8.8)
- Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- Red Hat Enterprise Linux AppStream EUS (v.9.6)
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
- Red Hat Enterprise Linux AppStream TUS (v.8.8)
- Red Hat Enterprise Linux BaseOS AUS (v.8.4)
- Red Hat Enterprise Linux BaseOS AUS (v.8.6)
- Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
- Red Hat Enterprise Linux BaseOS EUS (v.9.6)
- Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
- Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
- Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- Red Hat Enterprise Linux Server (v. 7 ELS)
- Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
- Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
- Red Hat OpenShift Container Platform 4
- Red Hat Update Infrastructure 5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-42012
- 2026-10-03 Alias added: GHSA-7hhj-8fwv-m5hc
- 2026-10-13 Affected versions changed · CNA
- 2026-10-13 Affected versions changed · Red Hat
- 2026-10-14 Fix available: RHSA-2026:82304 · Red Hat
- 2026-10-14 Fix available: RHSA-2026:82322 · Red Hat
- 2026-10-14 Fix available: cert-manager/cert-manager-istio-csr-rhel9@1791459759, cert-manager/cert-manager-operator-rhel9@1789029076, cert-manager/cert-manager-operator-rhel9@1791788287 +4 · CNA
- 2026-10-14 5 new references · CNA
- 2026-10-14 Fix available: RHSA-2026:82372 · Red Hat
- 2026-10-14 Fix available: RHSA-2026:82354 · Red Hat
- 2026-10-14 Fix available: RHSA-2026:82347 · Red Hat
- 2026-10-15 Fix available: RHSA-2026:82857 · Red Hat
- 2026-10-15 Fix available: RHSA-2026:82888 · Red Hat
- 2026-10-15 Fix available: cert-manager/cert-manager-operator-bundle@1791966259, cert-manager/cert-manager-operator-bundle@1791970484 · CNA
- 2026-10-15 2 new references · CNA
- 2026-10-16 Fix available: Cert Manager support for Red Hat OpenShift release 1.17, Cert Manager support for Red Hat OpenShift release 1.18 · Red Hat
- 2026-10-29 Fix available: openshift/[email protected], openshift/[email protected], openshift/[email protected] · CNA
- 2026-10-29 3 new references · CNA
- 2026-10-29 Fix available: RHSA-2026:89232 · Red Hat
- 2026-10-29 Fix available: RHSA-2026:89197 · Red Hat
- 2026-10-29 Fix available: RHSA-2026:89333 · Red Hat
- 2026-10-29 Fix available: Red Hat OpenShift Container Platform 4.20, Red Hat OpenShift Container Platform 4.21, Red Hat OpenShift Container Platform 4.22 · Red Hat
- 2026-10-30 Affected versions changed · Red Hat
- 2026-10-30 Affected versions changed · CNA
- 2026-11-03 Fix available: gnutls@0:2.12.23-22.el6_10.1 · CNA
- 2026-11-03 1 new reference · CNA
- 2026-11-03 Fix available: RHSA-2026:94442 · Red Hat
- 2026-11-03 Fix available: Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION), Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) · Red Hat
References
Advisory 28
- RHSA-2026:13274
- RHSA-2026:20611
- RHSA-2026:20612
- RHSA-2026:20613
- RHSA-2026:26319
- RHSA-2026:26409
- RHSA-2026:29197
- RHSA-2026:30004
- RHSA-2026:30849
- RHSA-2026:30850
- RHSA-2026:32962
- RHSA-2026:33125
- RHSA-2026:41921
- RHSA-2026:43575
- RHSA-2026:58981
- RHSA-2026:72502
- RHSA-2026:74674
- RHSA-2026:82304
- RHSA-2026:82322
- RHSA-2026:82347
- RHSA-2026:82354
- RHSA-2026:82372
- RHSA-2026:82857
- RHSA-2026:82888
- RHSA-2026:89197
- RHSA-2026:89232
- RHSA-2026:89333
- RHSA-2026:94442
More Red Hat vulnerabilities
- TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
- TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
- TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
- TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
- TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
- TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-42012 · CVE Program
- CVE-2026-42012 · NVD
- FIRST EPSS
- GHSA-7hhj-8fwv-m5hc · GitHub Advisory Database · CC BY 4.0
- CVE-2026-42012 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences