Medium5.5Red Hat & Ubuntu Linux
A NULL pointer dereference vulnerability exists in the ACL parser of libarchive
CVE-2026-5745 Published Apr 7, 2026
CVE-2026-5745
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
A NULL pointer dereference vulnerability exists in the ACL parser of libarchive. Red Hat rates this moderate (CVSS 5.5). Weakness: CWE-476. Affected package(s): libarchive-main. Resolved in Red Hat advisory RHSA-2026:8944 — update the affected packages (`sudo dnf update`).
Affected versions
- libarchive-main-3.8.7-1.hum1
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
Fixed versions
- RHSA-2026:8944
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:8944 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
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