CVE-2026-4424: Libarchive Rar Lzss Sign Compare
A signed/unsigned comparison vulnerability exists when validating the LZSS sliding window size. `(mask + 1)` is implicitly evaluated as a signed integer, which causes security checks against `dictionary_size` to fail if `mask + 1` becomes negative or has representation mismatches. Cast the signed operand to `unsigned int` to fix the issue.
Cgreprules fetch cve-2026-4424-libarchive-rar-lzss-sign-compare --engine opengrepDescription
A signed/unsigned comparison vulnerability exists when validating the LZSS sliding window size. `(mask + 1)` is implicitly evaluated as a signed integer, which causes security checks against `dictionary_size` to fail if `mask + 1` becomes negative or has representation mismatches. Cast the signed operand to `unsigned int` to fix the issue.
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