Veille CVE
CVE-2026-42496
9.1 CritiqueDescription
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.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 9.1 Critique | nvd@nist.gov (NVD) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| 3.1 | 9.1 Critique | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| 3.1 | 8.2 Élevée | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
Faiblesses (CWE)
Références
- https://github.com/jib/archive-tar-new/commit/17c873492a05eddc0de18c1485e0b2cccd5a9158.patch Patch
- https://metacpan.org/release/BINGOS/Archive-Tar-3.08/changes Release Notes
- https://www.cve.org/CVERecord?id=CVE-2026-42497 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:30851
- https://access.redhat.com/errata/RHSA-2026:30852
- https://access.redhat.com/errata/RHSA-2026:30856
- https://access.redhat.com/errata/RHSA-2026:30857
- https://access.redhat.com/security/cve/CVE-2026-42496
- https://bugzilla.redhat.com/show_bug.cgi?id=2481314
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42496.json