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TI-2026-25775 Aliases CVE-2026-33376GHSA-3r2p-7499-27q3

Auth Proxy IPv6 whitelist bypass

Priority LOW 34CWE-1188Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 12 fixed, 5 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

When using an IPv6 allow-list for the Auth Proxy feature, it defaults to /32 addresses. Addresses specifying a mask explicitly are not affected; to mitigate easily, add the desired mask (usually /128) to the addresses. Only auth proxy is affected; Okta, SAML, LDAP, etc are unaffected here.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00282 20th percentileScored 2026-11-07
Fix Partial Grafana OSS (Grafana): 11.6.14+security-04, 12.2.8+security-04, 12.3.6+security-04 +2Red Hat: 15 advisoriesRed Hat: 12 fixed, 5 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GrafanaGrafana OSS9.4.0 – 11.6.14; 11.6.14 to before 11.6.14+security-04; 12.0.0 – 12.2.8; 12.2.8 to before 12.2.8+security-04; 12.3.0 – 12.3.6; 12.3.6 to before 12.3.6+security-04; 12.4.0 – 12.4.3; 12.4.3 to before 12.4.3+security-02; 13.0.0 – 13.0.1; 13.0.1 to before 13.0.1+security-0111.6.14+security-04, 12.2.8+security-04, 12.3.6+security-04, 12.4.3+security-02, 13.0.1+security-01Patch availableCNA
  • Grafana OSS VendorGrafana Affected 9.4.0 – 11.6.14; 11.6.14 to before 11.6.14+security-04; 12.0.0 – 12.2.8; 12.2.8 to before 12.2.8+security-04; 12.3.0 – 12.3.6; 12.3.6 to before 12.3.6+security-04; 12.4.0 – 12.4.3; 12.4.3 to before 12.4.3+security-02; 13.0.0 – 13.0.1; 13.0.1 to before 13.0.1+security-01 Fixed in 11.6.14+security-04, 12.2.8+security-04, 12.3.6+security-04, 12.4.3+security-02, 13.0.1+security-01 Patch available CNA

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*8.5.0 to before 11.6.14; 12.2.0 to before 12.2.8; 12.3.0 to before 12.3.6; 12.4.0 to before 12.4.3VulnerableGrafana
cpe:2.3:a:grafana:grafana:11.6.14:-:*:*:*:*:*:*11.6.14VulnerableGrafana
cpe:2.3:a:grafana:grafana:11.6.14:security01:*:*:*:*:*:*11.6.14 security01VulnerableGrafana
cpe:2.3:a:grafana:grafana:12.2.8:-:*:*:*:*:*:*12.2.8VulnerableGrafana
cpe:2.3:a:grafana:grafana:12.2.8:security01:*:*:*:*:*:*12.2.8 security01VulnerableGrafana
cpe:2.3:a:grafana:grafana:12.3.6:-:*:*:*:*:*:*12.3.6VulnerableGrafana
cpe:2.3:a:grafana:grafana:12.3.6:security01:*:*:*:*:*:*12.3.6 security01VulnerableGrafana
cpe:2.3:a:grafana:grafana:12.4.3:-:*:*:*:*:*:*12.4.3VulnerableGrafana
cpe:2.3:a:grafana:grafana:13.0.0:*:*:*:*:*:*:*13.0.0VulnerableGrafana
cpe:2.3:a:grafana:grafana:13.0.1:-:*:*:*:*:*:*13.0.1VulnerableGrafana
  • cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:* Versions 8.5.0 to before 11.6.14; 12.2.0 to before 12.2.8; 12.3.0 to before 12.3.6; 12.4.0 to before 12.4.3 Vulnerable ·Grafana
  • cpe:2.3:a:grafana:grafana:11.6.14:-:*:*:*:*:*:* Versions 11.6.14 Vulnerable ·Grafana
  • cpe:2.3:a:grafana:grafana:11.6.14:security01:*:*:*:*:*:* Versions 11.6.14 security01 Vulnerable ·Grafana
  • cpe:2.3:a:grafana:grafana:12.2.8:-:*:*:*:*:*:* Versions 12.2.8 Vulnerable ·Grafana
  • cpe:2.3:a:grafana:grafana:12.2.8:security01:*:*:*:*:*:* Versions 12.2.8 security01 Vulnerable ·Grafana
  • cpe:2.3:a:grafana:grafana:12.3.6:-:*:*:*:*:*:* Versions 12.3.6 Vulnerable ·Grafana
  • cpe:2.3:a:grafana:grafana:12.3.6:security01:*:*:*:*:*:* Versions 12.3.6 security01 Vulnerable ·Grafana
  • cpe:2.3:a:grafana:grafana:12.4.3:-:*:*:*:*:*:* Versions 12.4.3 Vulnerable ·Grafana
  • cpe:2.3:a:grafana:grafana:13.0.0:*:*:*:*:*:*:* Versions 13.0.0 Vulnerable ·Grafana
  • cpe:2.3:a:grafana:grafana:13.0.1:-:*:*:*:*:*:* Versions 13.0.1 Vulnerable ·Grafana

Remediation

  • Fix · CNA Grafana OSS (Grafana) Fixed in 11.6.14+security-04, 12.2.8+security-04, 12.3.6+security-04, 12.4.3+security-02, 13.0.1+security-01

Red Hat 15 advisories

  • RHSA-2026:76795 Released 2026-10-06 · Red Hat rating Important
    grafana security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) grafana-9.2.10-28.el9_4, grafana-selinux-9.2.10-28.el9_4
  • RHSA-2026:76809 Released 2026-10-06 · Red Hat rating Important
    grafana security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) grafana-9.0.9-13.el9_2
  • RHSA-2026:68821 Released 2026-09-18 · Red Hat rating Important
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images grafana12.4-12.4.10-0.6.hum1@aarch64, grafana12.4-12.4.10-0.6.hum1@src, grafana12.4-12.4.10-0.6.hum1@x86_64
Show 12 more Red Hat advisories
  • RHSA-2026:68778 Released 2026-09-17 · Red Hat rating Important
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images grafana13.2-13.2.1-0.5.hum1@aarch64, grafana13.2-13.2.1-0.5.hum1@src, grafana13.2-13.2.1-0.5.hum1@x86_64
  • RHSA-2026:68767 Released 2026-09-17 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images grafana13.1-13.1.6-0.1.hum1@aarch64, grafana13.1-13.1.6-0.1.hum1@src, grafana13.1-13.1.6-0.1.hum1@x86_64
  • RHSA-2026:67518 Released 2026-09-15 · Red Hat rating Important
    grafana security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) grafana-10.2.6-23.el9_6, grafana-selinux-10.2.6-23.el9_6
  • RHSA-2026:67517 Released 2026-09-15 · Red Hat rating Important
    grafana security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) grafana-10.2.6-26.el10_0, grafana-selinux-10.2.6-26.el10_0
  • RHSA-2026:58982 Released 2026-08-24 · Red Hat rating Moderate
    grafana security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) grafana-10.2.6-23.el9_8.2, grafana-selinux-10.2.6-23.el9_8.2
  • RHSA-2026:55810 Released 2026-08-17 · Red Hat rating Critical
    Multicluster Global Hub 1.4.8 security update
    • Multicluster Global Hub 1.4.9 registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator
  • RHSA-2026:54178 Released 2026-08-12 · Red Hat rating Moderate
    grafana security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 10) grafana-10.2.6-28.el10_2.4, grafana-selinux-10.2.6-28.el10_2.4
  • RHSA-2026:53530 Released 2026-08-11 · Red Hat rating Critical
    Multicluster Global Hub 1.7.2 security update
    • Multicluster Global Hub 1.7.4 registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9 +1
  • RHSA-2026:52946 Released 2026-08-10 · Red Hat rating Critical
    Multicluster Global Hub 1.8.1 security update
    • Multicluster Global Hub 1.8.2 registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator
  • RHSA-2026:47149 Released 2026-07-28 · Red Hat rating Important
    Multicluster Global Hub 1.7.2 security update
    • Multicluster Global Hub 1.7.4 registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9 +1
  • RHSA-2026:44622 Released 2026-07-23 · Red Hat rating Important
    Multicluster Global Hub 1.6.4 security update
    • Multicluster Global Hub 1.6.6 registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9 +1
  • RHSA-2026:42852 Released 2026-07-21 · Red Hat rating Important
    Multicluster Global Hub 1.5.6 security update
    • Multicluster Global Hub 1.5.8 registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9 +1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Grafana OSS 11.6.14+security-04, 12.2.8+security-04 and 3 more versions

    10 records Highest priority Priority LOW 10 LOW

    Other records, highest priority first

    • TI-2026-25779 Users can generate Service Account tokens after permissions removalPriority LOW 37
    • TI-2026-25776 Dashboard Import Overwrites ACL — Editor Privilege Escalation to Dashboard AdminPriority LOW 33
    • TI-2026-25778 SQL Expressions Read File From DiskPriority LOW 29
    Show all 10 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Ceph Storage 5AffectedNo fix yet: Fix deferred
Red Hat Ceph Storage 6AffectedNo fix yet: Fix deferred
Red Hat Ceph Storage 7AffectedNo fix yet: Fix deferred
Red Hat Ceph Storage 8AffectedNo fix yet: Fix deferred
Red Hat Ceph Storage 9AffectedNo fix yet: Fix deferred
Multicluster Global Hub 1.4.9Fixed RHSA-2026:55810
Multicluster Global Hub 1.5.8Fixed RHSA-2026:42852
Multicluster Global Hub 1.6.6Fixed RHSA-2026:44622
Multicluster Global Hub 1.7.4Fixed RHSA-2026:47149, RHSA-2026:53530
Multicluster Global Hub 1.8.2Fixed RHSA-2026:52946
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:54178
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:58982
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:76809
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:76795
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:67517
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:67518
Red Hat Hardened ImagesFixed RHSA-2026:68767, RHSA-2026:68778, RHSA-2026:68821
Not affected: 8 products
  • Multicluster Global Hub 1.4.9
  • Multicluster Global Hub 1.5.8
  • Multicluster Global Hub 1.6.6
  • Multicluster Global Hub 1.7.4
  • Multicluster Global Hub 1.8.2
  • Red Hat Advanced Cluster Management for Kubernetes 2
  • Red Hat Enterprise Linux 8
  • Red Hat Hardened Images

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-33376
  2. 2026-10-03 Alias added: GHSA-3r2p-7499-27q3
  3. 2026-10-07 Fix available: RHSA-2026:76795 · Red Hat
  4. 2026-10-07 Fix available: RHSA-2026:76809 · Red Hat
  5. 2026-10-07 Fix available: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux AppStream E4S (v.9.4) · Red Hat
  6. 2026-11-06 Fix available: Multicluster Global Hub 1.7.4 · Red Hat

References

Advisory 1

  • TI-2021-16611 Snapshot authentication bypass in grafana KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-19604 Grafana path traversal KEVCVSS 3.1HIGH 7.5
  • TI-2024-08600 Grafana SQL Expressions allow for remote code execution CVSS 4.0CRITICAL 9.4
  • TI-2023-02931 Authentication bypass by spoofing in Grafana CVSS 3.1CRITICAL 9.8
  • TI-2020-10491 The avatar feature in Grafana 3.0.1 through 7.0.1 has an SSRF Incorrect Access Control… CVSS 3.1HIGH 8.2
  • TI-2025-03662 Open redirect in Grafana CVSS 3.1HIGH 7.6
See all 103 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences