Medium6.4Red Hat & Ubuntu Linux
Authorization bypass via case-insensitive username comparison
CVE-2026-27447 Published Apr 3, 2026
CVE-2026-27447
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Authorization bypass via case-insensitive username comparison. Red Hat rates this moderate (CVSS 6.4). Weakness: CWE-178. Affected package(s): cups-main. Resolved in Red Hat advisory RHSA-2026:8814 — update the affected packages (`sudo dnf update`).
Affected versions
- cups-main-2.4.17-1.hum1
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Fixed versions
- RHSA-2026:8814
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:8814 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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