Critical [CVE-2026-27962] Authentication bypass due to JWK Header Injection vulnerability
This critical-severity Red Hat Linux advisory covers CVE-2026-27962 affecting Red Hat Quay 3.10, Red Hat Quay 3.14, Red Hat Quay 3.15.
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Summary
Authentication bypass due to JWK Header Injection vulnerability. Red Hat rates this important (CVSS 9.1).
Weakness: CWE-347. Affected package(s): quay/quay-rhel9:1779204086, quay/quay-rhel8:1773971077, quay/quay-rhel8:1775512163, quay/quay-rhel8:1780891395.
Resolved in Red Hat advisory RHSA-2026:7314 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Quay 3.10; Red Hat Quay 3.14; Red Hat Quay 3.15; Red Hat Quay 3.16; and 1 more.
- quay/quay-rhel9:1779204086
- quay/quay-rhel8:1773971077
- quay/quay-rhel8:1775512163
- quay/quay-rhel8:1780891395
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:7314
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:7314 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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