High [CVE-2026-14164] Double-Free Vulnerability in RAR5 Decompression Logic via dangling filtered_buf pointer in init_unpack()
This high-severity Red Hat Linux advisory covers CVE-2026-14164 affecting Red Hat Hardened Images, Red Hat Enterprise Linux 9, Red Hat Update Infrastructure 5.
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Summary
Double-Free Vulnerability in RAR5 Decompression Logic via dangling filtered_buf pointer in init_unpack(). Red Hat rates this moderate (CVSS 7.5).
Weakness: CWE-415. Affected package(s): libarchive-main.
Resolved in Red Hat advisory RHSA-2026:30333 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 9; Red Hat Update Infrastructure 5; Red Hat Discovery 2; and 2 more.
- libarchive-main-3.8.8-2.hum1
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:30333
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:30333 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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