CVE-2026-41991

CVE-2026-41991 affects GNU gzip’s gzexe utility, where insecure temporary file handling creates a TOCTOU vulnerability. If mktemp is unavailable in PATH, gzexe constructs a PID-based temporary path without exclusive access or existence checks. A local attacker can pre-create the predicted path as...

CVE-2026-41992

GNU gzip is affected by a global buffer overflow in the LZH decompression logic caused by reusing a shared global state across LZ77/LZW/LZH within a single run. The vulnerability arises from a global array not reinitialized between files, enabling an attacker to deplete or poison the shared state...