CVE-2026-4424 — Libarchive: libarchive: information disclosure via heap out-of-bounds read in rar archive processing
A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size …
Published: 2026-03-19 · CVSS: 7.5 · CVSS 3.1
A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7