Critical [CVE-2026-28802] Signature verification bypass via malicious JWT allows unauthorized access
This critical-severity Red Hat Linux advisory covers CVE-2026-28802 affecting Red Hat Ansible Automation Platform 2.6, Red Hat Quay 3.10, Red Hat Quay 3.12.
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Summary
Signature verification bypass via malicious JWT allows unauthorized access. Red Hat rates this important (CVSS 9.1).
Weakness: CWE-347. Affected package(s): ansible-automation-platform, quay/quay-rhel8:1773771962, quay/quay-rhel9:1779204086, quay/quay-rhel8:1773971077, quay/quay-rhel8:1773936323, quay/quay-rhel8:1775169219.
Resolved in Red Hat advisory RHSA-2026:6309 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Ansible Automation Platform 2.6; Red Hat Quay 3.10; Red Hat Quay 3.12; Red Hat Quay 3.15; and 3 more.
- ansible-automation-platform-26/lightspeed-chatbot-rhel9:1774417022
- quay/quay-rhel8:1773771962
- quay/quay-rhel9:1779204086
- quay/quay-rhel8:1773971077
- quay/quay-rhel8:1773936323
- quay/quay-rhel8:1775169219
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:6309
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-2026:6309 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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