Detections
Analytics
CVE-2026-42496
critical
Description
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.
References
https://www.cve.org/CVERecord?id=CVE-2026-42497
https://metacpan.org/release/BINGOS/Archive-Tar-3.08/changes
https://github.com/jib/archive-tar-new/commit/17c873492a05eddc0de18c1485e0b2cccd5a9158.patch