mTLS client certificate spoofing via unstripped X-SSL-Client headers on HTTP frontend
Summary
mTLS client certificate spoofing via unstripped X-SSL-Client headers on HTTP frontend. Red Hat rates this important (CVSS 7.4). Weakness: CWE-287. Affected package(s): openshift4/ose-haproxy-router-rhel9:1781552170, openshift4/ose-haproxy-router-rhel9:1781643967, openshift4/ose-haproxy-router-rhel9:1781639027. Resolved in Red Hat advisory RHSA-2026:27063 — update the affected packages (`sudo dnf update`).
- openshift4/ose-haproxy-router-rhel9:1781552170
- openshift4/ose-haproxy-router-rhel9:1781643967
- openshift4/ose-haproxy-router-rhel9:1781639027
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
- RHSA-2026:27063
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:27063 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.