High [CVE-2026-13676] Security policy bypass due to improper Unicode hostname canonicalization
This high-severity Red Hat Linux advisory covers CVE-2026-13676.
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Summary
Security policy bypass due to improper Unicode hostname canonicalization. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-551. Red Hat lists fixing advisory RHSA-2026:37186 with package rhem/flightctl-ui-rhel9:1784127736, quay/quay-rhel9:1783955846, openshift4/ose-monitoring-plugin-rhel9:1783596795, rhem/flightctl-ui-rhel10:1784194574.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- rhem/flightctl-ui-rhel9:1784127736
- quay/quay-rhel9:1783955846
- openshift4/ose-monitoring-plugin-rhel9:1783596795
- rhem/flightctl-ui-rhel10:1784194574
- openshift4/ose-monitoring-plugin-rhel9:1783510956
- quay/quay-rhel8:1784125838
- rhem/flightctl-ui-ocp-rhel10:1784194938
- rhem/flightctl-ui-ocp-rhel9:1784126822
- openshift4/ose-monitoring-plugin-rhel9:1783559447
- RHSA-2026:37186
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- 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.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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