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High8.1Red Hat Linux

High [CVE-2026-9800] Authorization bypass via incorrect URI comparison

This high-severity Red Hat Linux advisory covers CVE-2026-9800 affecting Red Hat build of Keycloak 26.4, Red Hat build of Keycloak 26.6, Red Hat JBoss Enterprise Application Platform Expansion Pack.

CVE-2026-9800 Published May 19, 2026
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Authorization bypass via incorrect URI comparison. Red Hat rates this important (CVSS 8.1).

Weakness: CWE-1025. Affected package(s): rhbk/keycloak-operator-bundle:26.4.13, rhbk/keycloak-rhel9-operator:26.4, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9:26.6, rhbk/keycloak-rhel9:26.4, rhbk/keycloak-operator-bundle:26.6.4.

Resolved in Red Hat advisory RHSA-2026:30049 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat build of Keycloak 26.4; Red Hat build of Keycloak 26.6; Red Hat JBoss Enterprise Application Platform Expansion Pack.

Affected versions
  • rhbk/keycloak-operator-bundle:26.4.13-1
  • rhbk/keycloak-rhel9-operator:26.4-19
  • rhbk/keycloak-rhel9
  • rhbk/keycloak-rhel9:26.6-8
  • rhbk/keycloak-rhel9:26.4-19
  • rhbk/keycloak-operator-bundle:26.6.4-2
  • rhbk/keycloak-rhel9-operator:26.6-8

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions
  • RHSA-2026:30049

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Update the affected package(s) to the fixed version shipped in RHSA-2026:30049 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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