Client-side Denial of Service via unescaped regex metacharacters in XSRF cookie name
Summary
Client-side Denial of Service via unescaped regex metacharacters in XSRF cookie name. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1333. Affected package(s): openshift-service-mesh/kiali-ossmc-rhel9:1782201851, openshift-service-mesh/kiali-ossmc-rhel9:1782231869, openshift4/ose-console-rhel9:1782244020, quay/quay-rhel8:1782487717, quay/quay-rhel8:1781878070, advanced-cluster-security/rhacs-main-rhel8:1779293013. Resolved in Red Hat advisory RHSA-2026:26234 — update the affected packages (`sudo dnf update`).
- openshift-service-mesh/kiali-ossmc-rhel9:1782201851
- openshift-service-mesh/kiali-ossmc-rhel9:1782231869
- openshift4/ose-console-rhel9:1782244020
- quay/quay-rhel8:1782487717
- quay/quay-rhel8:1781878070
- advanced-cluster-security/rhacs-main-rhel8:1779293013
- discovery/discovery-ui-rhel9:1782166952
- openshift4/ose-monitoring-plugin-rhel9:1781731914
- quay/quay-rhel8:1781937357
- openshift4/ose-console:1782127091
- openshift-service-mesh/kiali-ossmc-rhel9:1782201894
- openshift-service-mesh/kiali-ossmc-rhel9:1782201696
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
- RHSA-2026:26234
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:26234 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
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