Package: perl Version: 5.40.1-6 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected] Forwarded: https://github.com/jib/archive-tar-new/commit/17c873492a05eddc0de18c1485e0b2cccd5a9158 Control: found -1 5.32.1-4 Control: found -1 5.36.0-1 Control: found -1 5.42.2-1
The following vulnerability was published[0] for Archive-Tar (bundled with perl): CVE ID: CVE-2026-42497 Distribution: Archive-Tar Versions: before 3.08 MetaCPAN: https://metacpan.org/dist/Archive-Tar VCS Repo: https://github.com/jib/archive-tar-new Archive::Tar versions before 3.08 for Perl extract hardlinks to attacker controlled paths outside the extraction directory Description ----------- Archive::Tar versions before 3.08 for Perl extract hardlinks to attacker controlled paths outside the extraction directory. _make_special_file() passes the tar header's linkname to link() without validating it against absolute paths or .. segments, creating a hardlink that shares the victim file's inode. A subsequent write through the extracted name modifies the victim file, and the post-extraction chmod, chown, and utime block in _extract_file() (guarded only against symlinks via -l) applies the tar header's mode, owner, and timestamps to the shared inode during extraction alone. [0] https://lists.security.metacpan.org/cve-announce/msg/40396457/ -- Niko Tyni [email protected]
