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TI-2026-52027 Aliases CVE-2026-74240GHSA-3vf7-35c7-wgcv

Quay: jwt claim validation bypasses in quay federated robot and sso authentication

Priority LOW 24CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-287.

Summary

A flaw was found in Red Hat Quay's JWT (JSON Web Token) validation for federated robot accounts and single sign-on (SSO) authentication. Multiple issues related to audience verification and the enforcement of `azp` and `sub` claims were identified. These flaws could allow an attacker with a validly-signed token from the same identity provider to bypass configured security restrictions. This bypass could lead to unauthorized access by circumventing intended audience, subject, or authorized-client limitations.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00292 21st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
Red HatRed Hat OpenShift Update Service——No fix listedCNA
Red HatRed Hat Quay 3——No fix listedCNA
Red HatRed Hat Quay 3——No fix listedCNA
  • Red Hat OpenShift Update Service VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Red Hat Quay 3 VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Red Hat Quay 3 VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:redhat:openshift_update_service:-:*:*:*:*:*:*:*not specified by NVDVulnerableRed Hat
cpe:2.3:a:redhat:quay:3.0.0:*:*:*:*:*:*:*3.0.0VulnerableRed Hat
  • cpe:2.3:a:redhat:openshift_update_service:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:quay:3.0.0:*:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·Red Hat

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat OpenShift Update ServiceAffectedNo fix yet: Fix deferred
Red Hat Quay 3AffectedNo fix yet

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-74240
  2. 2026-10-03 Alias added: GHSA-3vf7-35c7-wgcv

References

Advisory 2

  • TI-2026-52030 Quay: unauthenticated secscan notification endpoint in quay when psk is unset CVSS 3.1HIGH 8.2
  • TI-2026-52032 Quay: unauthenticated exported logs download in quay CVSS 3.1HIGH 7.5
  • TI-2026-52031 Quay: stripe webhook accepts forged events without signature verification in quay CVSS 3.1HIGH 7.5
  • TI-2026-52033 Quay: ssrf via build archive_url in quay build api CVSS 3.1HIGH 7.1
  • TI-2026-52028 Quay: ldap referral filter injection in quay external ldap authentication CVSS 3.1MEDIUM 6.5
  • TI-2025-35723 Osus-operator: privilege escalation via excessive /etc/passwd permissions CVSS 3.1MEDIUM 6.4
See all 7 →

Sources

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