CVE-2026-42496
Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory
CRITICAL 9.1
At a glance
- Source
- NVD
- EPSS
- EPSS 0.50 % · percentile 43 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- CPANSec
- NVD status
- Modified
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.
Weaknesses (CWE)
References
- https://github.com/jib/archive-tar-new/commit/17c873492a05eddc0de18c1485e0b2cccd5a9158.patch
- https://metacpan.org/release/BINGOS/Archive-Tar-3.08/changes
- https://www.cve.org/CVERecord?id=CVE-2026-42497
- 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
- https://access.redhat.com/errata/RHSA-2026:30857
- https://access.redhat.com/errata/RHSA-2026:30851
- https://access.redhat.com/errata/RHSA-2026:30856
- https://access.redhat.com/errata/RHSA-2026:30852
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N | CISA-ADP |
| CVSS 3.1 | HIGH 8.2 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H | redhat-SADP |
| CVSS 3.1 | CRITICAL 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | CRITICAL 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 3.1 | HIGH 8.2 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
European references
- ENISA EUVD · EUVD-2026-31774
- GCVE · GCVE-0-2026-42496
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0986 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0731 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:archive\:\:tar_project:archive\:\:tar:*:*:*:*:*:perl:*:*< 3.08
Affected products
| Product | Versions |
|---|---|
| BINGOS · Archive::Tar | affected 0 < 3.08 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |