CVE-2026-42314: Tarfile Incomplete Symlink Validation
Tarfile extraction iterates over archive members (often to mitigate CVE-2007-4559) but fails to validate symlinks using `issym()`, `islnk()`, `linkname`, or `type`. This allows symlink escape attacks where a malicious archive creates symlinks pointing outside the extraction directory.
Pythongreprules fetch cve-2026-42314-tarfile-incomplete-symlink-validation --engine opengrepDescription
Tarfile extraction iterates over archive members (often to mitigate CVE-2007-4559) but fails to validate symlinks using `issym()`, `islnk()`, `linkname`, or `type`. This allows symlink escape attacks where a malicious archive creates symlinks pointing outside the extraction directory.
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