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TI-2026-52028 Aliases CVE-2026-74241GHSA-x5cw-v6mp-3p93

Quay: ldap referral filter injection in quay external ldap authentication

Priority LOW 29CWE-90Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Deferred Red Hat: fix deferred

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

Summary

A flaw was found in Red Hat Quay's external Lightweight Directory Access Protocol (LDAP) authentication handling. When an LDAP referral is returned during authentication, the system does not properly escape the username input. This allows an attacker to inject LDAP filter metacharacters, enabling user-existence oracle attacks at the referral Directory Name (DN). This could also potentially influence which DN is used for password binding in multi-domain Active Directory environments.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0031 23rd percentileScored 2026-11-07
Fix Deferred Red Hat: fix deferred

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: Fix deferred

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-74241
  2. 2026-10-03 Alias added: GHSA-x5cw-v6mp-3p93

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-2025-35723 Osus-operator: privilege escalation via excessive /etc/passwd permissions CVSS 3.1MEDIUM 6.4
  • TI-2026-52029 Quay: repository notification uuid idor in quay api CVSS 3.1MEDIUM 5.3
See all 7 →

Sources

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