Medium6.3Red Hat & Ubuntu Linux

GNU sed TOCTOU race condition

CVE-2026-5958 Published Apr 19, 2026

CVE-2026-5958

Affected products & platforms

Red Hat & Ubuntu LinuxUnclassified

Summary

GNU sed TOCTOU race condition. Red Hat rates this moderate (CVSS 6.3). Weakness: CWE-367. Affected package(s): sed-main. Resolved in Red Hat advisory RHSA-2026:10995 — update the affected packages (`sudo dnf update`).

Affected versions

sed-main-4.10-1.hum1

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Fixed versions

RHSA-2026:10995

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-2026:10995 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 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.