RHSA-2026:16528MediumCVSS 6.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Published
May 12, 2026
Last Modified
September 5, 2026

🔗 CVE IDs covered (4)

CVE-2026-42498 →CVE-2026-43512 →CVE-2026-43514 →CVE-2026-43515 →

📋 Description

CVE-2026-42498 — tomcat-coyote: Apache Tomcat: Information disclosure due to HTTP Authentication Header exposure during WebSocket authentication. CVE-2026-43512 — tomcat-coyote: Apache Tomcat: Authentication bypass via digest authentication CVE-2026-43514 — tomcat-coyote: Apache Tomcat: Information disclosure via AJP secret timing discrepancy CVE-2026-43515 — tomcat-coyote: tomcat: Improper Authorization allows security bypass

🎯 Affected products3

  • Red Hat Hardened Images
  • tomcat10-main@noarch as a component of Red Hat Hardened Images
  • tomcat10-main@src as a component of Red Hat Hardened Images

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ Workaround: To mitigate this issue, disable DIGEST authentication within Apache Tomcat if it is not essential for your environment. This involves modifying the server's authentication configuration to utilize alternative methods or remove the DIGEST realm. A service restart is required for these changes to take effect and may impact functionality relying on DIGEST authentication. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

🔗 References (8)