Vulnerability Details CVE-2026-42496
Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory.
_make_special_file() passes the tar header's linkname to symlink() without validating it against absolute paths or .. segments. The secure-extract mode check that guards regular file extraction does not cover the symlink target.
A subsequent open through the extracted name reads or writes the attacker chosen path.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 16.7%
CVSS Severity
CVSS v3 Score 9.1
References