Memory limit bypass in Go net/textproto and mime/multipart parsing
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 28 fixed, 27 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-770.
Summary
The Go standard library packages net/textproto and mime/multipart are affected from 0 before 1.26.9 and from 1.27.0-0 before 1.27.2. Parsing a multipart form can bypass memory limits and read an arbitrarily long line into memory when fewer than 400 bytes remain in the limit at the start of a part (CWE-770). A remote attacker without privileges or user interaction can exhaust memory, affecting availability.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
Parsing a multipart form can bypass memory limits and read an arbitrarily long line into memory when the remaining limit at the start of a part is less than 400 bytes.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| Go standard library | net/textproto | before 1.26.9; 1.27.0-0 to before 1.27.2 | 1.26.9, 1.27.2 | Patch available | CNA |
| Go standard library | mime/multipart | before 1.26.9; 1.27.0-0 to before 1.27.2 | 1.26.9, 1.27.2 | Patch available | CNA |
- net/textproto VendorGo standard library Affected before 1.26.9; 1.27.0-0 to before 1.27.2 Fixed in 1.26.9, 1.27.2 Patch available CNA
- mime/multipart VendorGo standard library Affected before 1.26.9; 1.27.0-0 to before 1.27.2 Fixed in 1.26.9, 1.27.2 Patch available CNA
Remediation
The fixed versions are Go 1.26.9 and 1.27.2. Red Hat advisories include RHSA-2026:95519, RHSA-2026:93617 and RHSA-2026:92516. Red Hat lists OpenShift Developer Tools and Services and OpenShift Pipelines with no fix planned, and OpenShift Serverless, OpenShift Service Mesh 3, Red Hat Enterprise Linux 7, 8, 9 and 10, and other products with no fix available.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
- Fix · CNA net/textproto (Go standard library) Fixed in 1.26.9, 1.27.2
- Fix · CNA mime/multipart (Go standard library) Fixed in 1.26.9, 1.27.2
Red Hat 49 advisories
- RHSA-2026:95519 Released 2026-11-05 · Red Hat rating Importantdelve security update
- Red Hat Enterprise Linux AppStream (v. 10) delve-1.26.1-3.el10_2
- RHSA-2026:95014 Released 2026-11-04 · Red Hat rating Importantopentelemetry-collector security update
- Red Hat Enterprise Linux AppStream EUS (v.9.6) opentelemetry-collector-0.158.0-2.el9_6
- RHSA-2026:95015 Released 2026-11-04 · Red Hat rating Importantopentelemetry-collector security update
- Red Hat Enterprise Linux AppStream E4S (v.9.4) opentelemetry-collector-0.158.0-2.el9_4
Show 46 more Red Hat advisories
- RHSA-2026:95016 Released 2026-11-04 · Red Hat rating Importantopentelemetry-collector security update
- Red Hat Enterprise Linux AppStream EUS (v. 10.0) opentelemetry-collector-0.158.0-2.el10_0
- RHSA-2026:93617 Released 2026-11-02 · Red Hat rating Importantopentelemetry-collector security update
- Red Hat Enterprise Linux AppStream (v. 9) opentelemetry-collector-0.158.0-2.el9_8
- RHSA-2026:93596 Released 2026-11-02 · Red Hat rating Importantopentelemetry-collector security update
- Red Hat Enterprise Linux AppStream (v. 10) opentelemetry-collector-0.158.0-2.el10_2
- RHSA-2026:92859 Released 2026-10-29 · Red Hat rating ImportantSatellite 6.17 security update
- Red Hat Satellite 6.17 for RHEL 9 openvox-agent-8.31.1-1.el9sat, openvox-server-8.17.0-1.el9sat, yggdrasil-worker-forwarder-0.1.1-1.el9sat
- RHSA-2026:92861 Released 2026-10-29 · Red Hat rating CriticalSatellite 6.19 security update
- Red Hat Satellite 6.19 for RHEL 9 openvox-agent-8.31.1-1.el9sat, openvox-server-8.17.0-1.el9sat, python3.12-brotli-1.2.1-1.el9pc +6
- RHSA-2026:92858 Released 2026-10-29 · Red Hat rating ImportantSatellite 6.16 EUS security update
- Red Hat Satellite 6.16 for RHEL 8 openvox-agent-8.31.1-1.el8sat, openvox-server-8.17.0-1.el8sat, yggdrasil-worker-forwarder-0.1.1-1.el8sat
- Red Hat Satellite 6.16 for RHEL 9 openvox-agent-8.31.1-1.el9sat, openvox-server-8.17.0-1.el9sat, yggdrasil-worker-forwarder-0.1.1-1.el9sat
- RHSA-2026:92860 Released 2026-10-29 · Red Hat rating ImportantSatellite 6.18 security update
- Red Hat Satellite 6.18 for RHEL 9 openvox-agent-8.31.1-1.el9sat, openvox-server-8.17.0-1.el9sat, yggdrasil-worker-forwarder-0.1.1-1.el9sat
- RHSA-2026:92516 Released 2026-10-29 · Red Hat rating ImportantRed Hat OpenShift Service Mesh 3.4.4
- Red Hat OpenShift Service Mesh 3.4 registry.redhat.io/openshift-service-mesh/istio-cni-rhel9, registry.redhat.io/openshift-service-mesh/istio-pilot-rhel9, registry.redhat.io/openshift-service-mesh/istio-proxyv2-rhel9 +1
- RHSA-2026:92509 Released 2026-10-29 · Red Hat rating ImportantRed Hat OpenShift Service Mesh 3.3.9
- Red Hat OpenShift Service Mesh 3.3 registry.redhat.io/openshift-service-mesh/istio-cni-rhel9, registry.redhat.io/openshift-service-mesh/istio-pilot-rhel9, registry.redhat.io/openshift-service-mesh/istio-proxyv2-rhel9 +1
- RHSA-2026:92497 Released 2026-10-29 · Red Hat rating ImportantRed Hat OpenShift Service Mesh 3.2.11
- Red Hat OpenShift Service Mesh 3.2 registry.redhat.io/openshift-service-mesh/istio-cni-rhel9, registry.redhat.io/openshift-service-mesh/istio-pilot-rhel9, registry.redhat.io/openshift-service-mesh/istio-proxyv2-rhel9 +1
- RHSA-2026:92480 Released 2026-10-29 · Red Hat rating ImportantRed Hat OpenShift Service Mesh 3.1.14
- Red Hat OpenShift Service Mesh 3.1 registry.redhat.io/openshift-service-mesh/istio-cni-rhel9, registry.redhat.io/openshift-service-mesh/istio-pilot-rhel9, registry.redhat.io/openshift-service-mesh/istio-proxyv2-rhel9 +1
- RHSA-2026:92451 Released 2026-10-29 · Red Hat rating ImportantRed Hat OpenShift Service Mesh 3.0.17
- Red Hat OpenShift Service Mesh 3.0 registry.redhat.io/openshift-service-mesh/istio-cni-rhel9, registry.redhat.io/openshift-service-mesh/istio-pilot-rhel9, registry.redhat.io/openshift-service-mesh/istio-proxyv2-rhel9 +1
- RHSA-2026:92372 Released 2026-10-29 · Red Hat rating Importantosbuild-composer security update
- Red Hat Enterprise Linux AppStream E4S (v.9.2) osbuild-composer-76.1-10.el9_2, osbuild-composer-core-76.1-10.el9_2, osbuild-composer-dnf-json-76.1-10.el9_2 +1
- RHSA-2026:91958 Released 2026-10-28 · Red Hat rating Importantosbuild-composer security update
- Red Hat Enterprise Linux AppStream E4S (v.9.4) osbuild-composer-101.3-4.el9_4.7, osbuild-composer-core-101.3-4.el9_4.7, osbuild-composer-worker-101.3-4.el9_4.7
- RHSA-2026:91646 Released 2026-10-28 · Red Hat rating Importantosbuild-composer security update
- Red Hat Enterprise Linux AppStream EUS (v. 10.0) osbuild-composer-134.1-13.el10_0, osbuild-composer-core-134.1-13.el10_0, osbuild-composer-worker-134.1-13.el10_0
- RHSA-2026:91587 Released 2026-10-28 · Red Hat rating Importantosbuild-composer security update
- Red Hat Enterprise Linux AppStream EUS (v.9.6) osbuild-composer-132.2-13.el9_6, osbuild-composer-core-132.2-13.el9_6, osbuild-composer-worker-132.2-13.el9_6
- RHSA-2026:91572 Released 2026-10-28 · Red Hat rating Importantyggdrasil security update
- Red Hat Enterprise Linux AppStream EUS (v. 10.0) yggdrasil-0.4.7-6.el10_0.1
- Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) yggdrasil-devel-0.4.7-6.el10_0.1
- RHSA-2026:91138 Released 2026-10-27 · Red Hat rating Importantyggdrasil security update
- Red Hat Enterprise Linux AppStream (v. 10) yggdrasil-0.4.9.2-1.el10_2.4
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) yggdrasil-devel-0.4.9.2-1.el10_2.4
- RHSA-2026:90994 Released 2026-10-27 · Red Hat rating Importantgo-toolset:rhel8 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) delve-1.26.1-1.module+el8.4.0+25181+7ce5b91c.src::go-toolset:rhel8, delve-1.26.1-1.module+el8.4.0+25181+7ce5b91c.x86_64::go-toolset:rhel8, go-toolset-1.26.10-2.module+el8.4.0+25201+9a419e96.x86_64::go-toolset:rhel8 +8
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) delve-1.26.1-1.module+el8.4.0+25181+7ce5b91c.src::go-toolset:rhel8, delve-1.26.1-1.module+el8.4.0+25181+7ce5b91c.x86_64::go-toolset:rhel8, go-toolset-1.26.10-2.module+el8.4.0+25201+9a419e96.x86_64::go-toolset:rhel8 +8
- RHSA-2026:89933 Released 2026-10-26 · Red Hat rating Importantdelve security update
- Red Hat Enterprise Linux AppStream EUS (v.9.6) delve-1.26.1-1.el9_6.2
- RHSA-2026:90332 Released 2026-10-26 · Red Hat rating ImportantRHOSO 18.0 os-diff security update
- 9Base-RHOSO-TOOLS-18 golang-github-openstack-k8s-operators-os-diff-0.1.1-18.0.20261021172337.a95ae05.el9ost
- Red Hat OpenStack Services on OpenShift 18.0 golang-github-openstack-k8s-operators-os-diff-0.1.1-18.0.20261021172337.a95ae05.el9ost
- RHSA-2026:89888 Released 2026-10-26 · Red Hat rating Importantdelve security update
- Red Hat Enterprise Linux AppStream E4S (v.9.2) delve-1.26.1-1.el9_2.2
- RHSA-2026:89885 Released 2026-10-26 · Red Hat rating Importantdelve security update
- Red Hat Enterprise Linux AppStream E4S (v.9.4) delve-1.26.1-1.el9_4.2
- RHSA-2026:89884 Released 2026-10-26 · Red Hat rating Importantdelve security update
- Red Hat Enterprise Linux AppStream EUS (v. 10.0) delve-1.26.1-3.el10_0
- RHSA-2026:89732 Released 2026-10-26 · Red Hat rating Importantgrafana security update
- Red Hat Enterprise Linux AppStream (v. 10) grafana-10.2.6-28.el10_2.9, grafana-selinux-10.2.6-28.el10_2.9
- RHSA-2026:88395 Released 2026-10-22 · Red Hat rating Importantgrafana-pcp security update
- Red Hat Enterprise Linux AppStream E4S (v.8.8) grafana-pcp-3.2.0-6.el8_8.2
- Red Hat Enterprise Linux AppStream TUS (v.8.8) grafana-pcp-3.2.0-6.el8_8.2
- RHSA-2026:88394 Released 2026-10-22 · Red Hat rating Importantgrafana-pcp security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) grafana-pcp-3.2.0-4.el8_6.2
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) grafana-pcp-3.2.0-4.el8_6.2
- RHSA-2026:88340 Released 2026-10-22 · Red Hat rating Importantgrafana security update
- Red Hat Enterprise Linux AppStream E4S (v.8.8) grafana-7.5.15-12.el8_8
- Red Hat Enterprise Linux AppStream TUS (v.8.8) grafana-7.5.15-12.el8_8
- RHSA-2026:88339 Released 2026-10-22 · Red Hat rating Importantgrafana security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) grafana-7.5.11-12.el8_6
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) grafana-7.5.11-12.el8_6
- RHSA-2026:88317 Released 2026-10-22 · Red Hat rating Importantgrafana-pcp security update
- Red Hat Enterprise Linux AppStream EUS (v. 10.0) grafana-pcp-5.3.0-1.el10_0.2
- RHSA-2026:88189 Released 2026-10-22 · Red Hat rating Importantgrafana-pcp security update
- Red Hat Enterprise Linux AppStream (v. 8) grafana-pcp-5.1.1-19.el8_10
- RHSA-2026:88188 Released 2026-10-22 · Red Hat rating Importantgrafana security update
- Red Hat Enterprise Linux AppStream (v. 8) grafana-9.2.10-36.el8_10, grafana-selinux-9.2.10-36.el8_10
- RHSA-2026:87911 Released 2026-10-22 · Red Hat rating Importantgrafana-pcp security update
- Red Hat Enterprise Linux AppStream EUS (v.9.6) grafana-pcp-5.1.1-15.el9_6.2
- RHSA-2026:87245 Released 2026-10-21 · Red Hat rating Importantgo-toolset:rhel8 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream E4S (v.8.8) delve-1.26.1-1.module+el8.8.0+24781+86ad105d.ppc64le::go-toolset:rhel8, delve-1.26.1-1.module+el8.8.0+24781+86ad105d.src::go-toolset:rhel8, delve-1.26.1-1.module+el8.8.0+24781+86ad105d.x86_64::go-toolset:rhel8 +13
- Red Hat Enterprise Linux AppStream TUS (v.8.8) delve-1.26.1-1.module+el8.8.0+24781+86ad105d.src::go-toolset:rhel8, delve-1.26.1-1.module+el8.8.0+24781+86ad105d.x86_64::go-toolset:rhel8, go-toolset-1.26.10-4.module+el8.8.0+25113+a148ecc0.x86_64::go-toolset:rhel8 +8
- RHSA-2026:87246 Released 2026-10-21 · Red Hat rating Importantgo-toolset:rhel8 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) delve-1.26.1-1.module+el8.6.0+24782+a062e766.src::go-toolset:rhel8, delve-1.26.1-1.module+el8.6.0+24782+a062e766.x86_64::go-toolset:rhel8, go-toolset-1.26.10-4.module+el8.6.0+25114+90ecdb41.x86_64::go-toolset:rhel8 +8
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) delve-1.26.1-1.module+el8.6.0+24782+a062e766.src::go-toolset:rhel8, delve-1.26.1-1.module+el8.6.0+24782+a062e766.x86_64::go-toolset:rhel8, go-toolset-1.26.10-4.module+el8.6.0+25114+90ecdb41.x86_64::go-toolset:rhel8 +8
- RHSA-2026:87043 Released 2026-10-21 · Red Hat rating Importantgolang security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream EUS (v.9.6) go-toolset-1.26.10-1.el9_6, golang-1.26.10-1.el9_6, golang-bin-1.26.10-1.el9_6 +5
- RHSA-2026:87042 Released 2026-10-21 · Red Hat rating Importantgolang security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream E4S (v.9.4) go-toolset-1.26.10-1.el9_4, golang-1.26.10-1.el9_4, golang-bin-1.26.10-1.el9_4 +5
- RHSA-2026:87041 Released 2026-10-21 · Red Hat rating Importantgolang security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream E4S (v.9.2) go-toolset-1.26.10-1.el9_2, golang-1.26.10-1.el9_2, golang-bin-1.26.10-1.el9_2 +5
- RHSA-2026:87040 Released 2026-10-21 · Red Hat rating Importantgolang security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream EUS (v. 10.0) go-toolset-1.26.10-1.el10_0, golang-1.26.10-1.el10_0, golang-bin-1.26.10-1.el10_0 +5
- RHSA-2026:86972 Released 2026-10-21 · Red Hat rating Importantgrafana-pcp security update
- Red Hat Enterprise Linux AppStream E4S (v.9.4) grafana-pcp-5.1.1-10.el9_4
- RHSA-2026:86973 Released 2026-10-21 · Red Hat rating Importantgrafana-pcp security update
- Red Hat Enterprise Linux AppStream E4S (v.9.2) grafana-pcp-5.1.1-5.el9_2.3
- RHSA-2026:86196 Released 2026-10-20 · Red Hat rating Importantgolang security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 9) go-toolset-1.26.10-1.el9_8, golang-1.26.10-1.el9_8, golang-bin-1.26.10-1.el9_8 +5
- RHSA-2026:86203 Released 2026-10-20 · Red Hat rating Importantgo-toolset:rhel8 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 8) delve-1.26.1-1.module+el8.10.0+24516+40554724.aarch64::go-toolset:rhel8, delve-1.26.1-1.module+el8.10.0+24516+40554724.ppc64le::go-toolset:rhel8, delve-1.26.1-1.module+el8.10.0+24516+40554724.src::go-toolset:rhel8 +22
- RHSA-2026:86093 Released 2026-10-20 · Red Hat rating Importantgolang security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 10) go-toolset-1.26.10-1.el10_2, golang-1.26.10-1.el10_2, golang-bin-1.26.10-1.el10_2 +5
- RHSA-2026:86029 Released 2026-10-20 · Red Hat rating ImportantRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images golang1.27-1.27.3-1.hum1@aarch64, golang1.27-1.27.3-1.hum1@s390x, golang1.27-1.27.3-1.hum1@src +16
- RHSA-2026:85899 Released 2026-10-20 · Red Hat rating ImportantRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images golang1.26-1.26.10-0.1.hum1@aarch64, golang1.26-1.26.10-0.1.hum1@s390x, golang1.26-1.26.10-0.1.hum1@src +16
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Developer Tools and Services | Affected | No fix planned: Out of support scope |
| OpenShift Pipelines | Affected | No fix planned: Will not fix |
| OpenShift Serverless | Affected | No fix yet |
| OpenShift Service Mesh 3 | Affected | No fix yet |
| Red Hat Ansible Automation Platform 2 | Affected | No fix yet |
| Red Hat Ceph Storage 7 | Affected | No fix yet |
| Red Hat Ceph Storage 8 | Affected | No fix yet |
| Red Hat Ceph Storage 9 | Affected | No fix yet |
| Red Hat Certification Program for Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat Edge Manager 1 | Affected | No fix yet |
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat Enterprise Linux AI (RHEL AI) 3 | Affected | No fix yet |
| Red Hat Hardened Images | Affected | No fix planned: Will not fix |
| Red Hat OpenShift AI (RHOAI) | Affected | — |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet |
| Red Hat OpenShift Virtualization 4 | Affected | No fix yet |
| Red Hat OpenShift on AWS | Affected | No fix yet |
| Red Hat OpenStack Platform 16.2 | Affected | No fix planned: Out of support scope |
| Red Hat OpenStack Platform 17.1 | Affected | No fix planned: Out of support scope |
| Red Hat Service Interconnect 1 | Affected | No fix planned: Out of support scope |
| Red Hat Service Interconnect 2 | Affected | No fix yet |
| streams for Apache Kafka 2 | Affected | No fix planned: Out of support scope |
| streams for Apache Kafka 3 | Affected | No fix yet |
| 9Base-RHOSO-TOOLS-18 | Fixed | RHSA-2026:90332 |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:86093, RHSA-2026:89732, RHSA-2026:91138, RHSA-2026:93596, RHSA-2026:95519 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2026:86203, RHSA-2026:88188, RHSA-2026:88189 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2026:86196, RHSA-2026:93617 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2026:90994 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2026:87246, RHSA-2026:88339, RHSA-2026:88394 |
| Red Hat Enterprise Linux AppStream E4S (v.8.8) | Fixed | RHSA-2026:87245, RHSA-2026:88340, RHSA-2026:88395 |
| Red Hat Enterprise Linux AppStream E4S (v.9.2) | Fixed | RHSA-2026:86973, RHSA-2026:87041, RHSA-2026:89888, RHSA-2026:92372 |
| Red Hat Enterprise Linux AppStream E4S (v.9.4) | Fixed | RHSA-2026:86972, RHSA-2026:87042, RHSA-2026:89885, RHSA-2026:91958, RHSA-2026:95015 |
| Red Hat Enterprise Linux AppStream EUS (v. 10.0) | Fixed | RHSA-2026:87040, RHSA-2026:88317, RHSA-2026:89884, RHSA-2026:91572, RHSA-2026:91646, RHSA-2026:95016 |
| Red Hat Enterprise Linux AppStream EUS (v.9.6) | Fixed | RHSA-2026:87043, RHSA-2026:87911, RHSA-2026:89933, RHSA-2026:91587, RHSA-2026:95014 |
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) | Fixed | RHSA-2026:90994 |
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) | Fixed | RHSA-2026:87246, RHSA-2026:88339, RHSA-2026:88394 |
| Red Hat Enterprise Linux AppStream TUS (v.8.8) | Fixed | RHSA-2026:87245, RHSA-2026:88340, RHSA-2026:88395 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) | Fixed | RHSA-2026:91138 |
| Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) | Fixed | RHSA-2026:91572 |
| Red Hat Hardened Images | Fixed | RHSA-2026:85899, RHSA-2026:86029 |
| Red Hat OpenShift Service Mesh 3.0 | Fixed | RHSA-2026:92451 |
| Red Hat OpenShift Service Mesh 3.1 | Fixed | RHSA-2026:92480 |
| Red Hat OpenShift Service Mesh 3.2 | Fixed | RHSA-2026:92497 |
| Red Hat OpenShift Service Mesh 3.3 | Fixed | RHSA-2026:92509 |
| Red Hat OpenShift Service Mesh 3.4 | Fixed | RHSA-2026:92516 |
| Red Hat OpenStack Services on OpenShift 18.0 | Fixed | RHSA-2026:90332 |
| Red Hat Satellite 6.16 for RHEL 8 | Fixed | RHSA-2026:92858 |
| Red Hat Satellite 6.16 for RHEL 9 | Fixed | RHSA-2026:92858 |
| Red Hat Satellite 6.17 for RHEL 9 | Fixed | RHSA-2026:92859 |
| Red Hat Satellite 6.18 for RHEL 9 | Fixed | RHSA-2026:92860 |
| Red Hat Satellite 6.19 for RHEL 9 | Fixed | RHSA-2026:92861 |
Not affected: 17 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift AI (RHOAI)
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Service Mesh 3.0
- Red Hat OpenShift Service Mesh 3.1
- Red Hat OpenShift Service Mesh 3.2
- Red Hat OpenShift Service Mesh 3.3
- Red Hat OpenShift Service Mesh 3.4
- Red Hat OpenStack Platform 18.0
- Red Hat Satellite 6.16 for RHEL 8
- Red Hat Satellite 6.16 for RHEL 9
- Red Hat Satellite 6.17 for RHEL 9
- Red Hat Satellite 6.18 for RHEL 9
- Red Hat Satellite 6.19 for RHEL 9
Timeline
- 2026-10-09 Threatist record created from CVE-2026-94440
- 2026-10-09 Alias added: GHSA-874m-fcc5-9gqf
- 2026-10-10 CVSS score added · CISA ADP
- 2026-10-10 Weakness changed · CISA ADP
- 2026-10-10 CISA SSVC decision points changed
- 2026-10-23 Fix available: RHSA-2026:87246 · Red Hat
- 2026-10-23 Fix available: RHSA-2026:85899 · Red Hat
- 2026-10-23 Fix available: RHSA-2026:86029 · Red Hat
- 2026-10-23 Fix available: RHSA-2026:86093 · Red Hat
- 2026-10-23 Fix available: RHSA-2026:86196 · Red Hat
- 2026-10-23 Fix available: RHSA-2026:86203 · Red Hat
- 2026-10-23 Fix available: RHSA-2026:87042 · Red Hat
- 2026-10-23 Fix available: RHSA-2026:87040 · Red Hat
- 2026-10-23 Fix available: RHSA-2026:87041 · Red Hat
- 2026-10-23 Fix available: RHSA-2026:87043 · Red Hat
- 2026-10-23 Fix available: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux AppStream (v. 9) +7 · Red Hat
- 2026-10-23 CVSS score added · Red Hat
- 2026-10-24 Fix available: RHSA-2026:87245 · Red Hat
- 2026-10-24 Fix available: RHSA-2026:88189 · Red Hat
- 2026-10-24 Fix available: RHSA-2026:88188 · Red Hat
- 2026-10-24 Fix available: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8) · Red Hat
- 2026-10-26 Fix available: RHSA-2026:89732 · Red Hat
- 2026-10-26 Fix available: RHSA-2026:89888 · Red Hat
- 2026-10-26 Fix available: RHSA-2026:89884 · Red Hat
- 2026-10-26 Affected versions changed · Red Hat
- 2026-10-26 Fix available: RHSA-2026:86972 · Red Hat
- 2026-10-26 Fix available: RHSA-2026:86973 · Red Hat
- 2026-10-26 Fix available: RHSA-2026:87911 · Red Hat
- 2026-10-26 Fix available: RHSA-2026:88317 · Red Hat
- 2026-10-26 Fix available: RHSA-2026:88340 · Red Hat
- 2026-10-26 Fix available: RHSA-2026:88339 · Red Hat
- 2026-10-26 Fix available: RHSA-2026:88394 · Red Hat
- 2026-10-26 Fix available: RHSA-2026:88395 · Red Hat
- 2026-10-26 Fix available: RHSA-2026:89885 · Red Hat
- 2026-10-26 Fix available: RHSA-2026:90332 · Red Hat
- 2026-10-26 Fix available: 9Base-RHOSO-TOOLS-18, Red Hat OpenStack Services on OpenShift 18.0 · Red Hat
- 2026-10-27 Affected versions changed · Red Hat
- 2026-10-29 Fix available: RHSA-2026:89933 · Red Hat
- 2026-10-29 Fix available: RHSA-2026:91138 · Red Hat
- 2026-10-29 Fix available: RHSA-2026:90994 · Red Hat
- 2026-10-29 Fix available: RHSA-2026:91646 · Red Hat
- 2026-10-29 Fix available: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · Red Hat
- 2026-10-29 Fix available: RHSA-2026:92372 · Red Hat
- 2026-10-29 Affected versions changed · Red Hat
- 2026-10-30 Fix available: RHSA-2026:91572 · Red Hat
- 2026-10-30 Fix available: RHSA-2026:91587 · Red Hat
- 2026-10-30 Fix available: RHSA-2026:91958 · Red Hat
- 2026-10-30 Fix available: RHSA-2026:92451 · Red Hat
- 2026-10-30 Fix available: RHSA-2026:92509 · Red Hat
- 2026-10-30 Fix available: RHSA-2026:92497 · Red Hat
- 2026-10-30 Fix available: RHSA-2026:92480 · Red Hat
- 2026-10-30 Fix available: RHSA-2026:92858 · Red Hat
- 2026-10-30 Fix available: RHSA-2026:92859 · Red Hat
- 2026-10-30 Fix available: Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0), Red Hat OpenShift Service Mesh 3.0, Red Hat OpenShift Service Mesh 3.1 +5 · Red Hat
- 2026-10-30 Fix available: RHSA-2026:92860 · Red Hat
- 2026-10-30 Fix available: Red Hat Satellite 6.18 for RHEL 9 · Red Hat
- 2026-10-30 Fix available: Red Hat OpenShift Service Mesh 3.4, Red Hat Satellite 6.19 for RHEL 9 · Red Hat
- 2026-10-31 Fix available: RHSA-2026:92516 · Red Hat
- 2026-10-31 Fix available: RHSA-2026:92861 · Red Hat
- 2026-11-02 Affected versions changed · Red Hat
- 2026-11-02 Fix available: RHSA-2026:93617 · Red Hat
- 2026-11-02 Affected versions changed · Red Hat
- 2026-11-03 Fix available: RHSA-2026:93596 · Red Hat
- 2026-11-03 Affected versions changed · Red Hat
- 2026-11-04 Fix available: RHSA-2026:95015 · Red Hat
- 2026-11-04 Fix available: RHSA-2026:95014 · Red Hat
- 2026-11-04 Fix available: RHSA-2026:95016 · Red Hat
- 2026-11-04 Affected versions changed · Red Hat
- 2026-11-06 Fix available: RHSA-2026:95519 · Red Hat
- 2026-11-06 Affected versions changed · Red Hat
- 2026-11-06 Affected versions changed · Red Hat
- 2026-11-07 EPSS moved to the 50th–90th percentile
- 2026-11-08 Priority changed: LOW → MEDIUM
References
More Go standard library vulnerabilities
- TI-2020-00578 Improper certificate validation in Microsoft Windows KEVCVSS 3.1HIGH 8.1
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2023-24278 HTTP/2 CONTINUATION flood in net/http CVSS 3.1HIGH 7.5
- TI-2018-05208 The "go get" implementation in Go 1.9.4, when the -insecure command-line option is used… CVSS 3.1HIGH 8.8
- TI-2024-16309 Panic when parsing invalid palette-color images in golang.org/x/image CVSS 3.1HIGH 7.5
- TI-2022-20112 Request smuggling due to improper request handling in golang.org/x/net/http2/h2c CVSS 3.1HIGH 7.5
Sources
- CVE-2026-94440 · CVE Program
- CVE-2026-94440 · NVD
- FIRST EPSS
- GHSA-874m-fcc5-9gqf · GitHub Advisory Database · CC BY 4.0
- CVE-2026-94440 · 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