Medium4.7Red Hat & Ubuntu Linux
TOCTOU in the mount program when setting up loop devices
CVE-2026-27456 Published Apr 3, 2026
CVE-2026-27456
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
TOCTOU in the mount program when setting up loop devices. Red Hat rates this moderate (CVSS 4.7). Weakness: CWE-367. Affected package(s): util-linux-main. Resolved in Red Hat advisory RHSA-2026:7180 — update the affected packages (`sudo dnf update`).
Affected versions
- util-linux-main-2.42-7.1.hum1
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Fixed versions
- RHSA-2026:7180
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-2026:7180 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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