CVE-2026-5704
Tar: tar: hidden file injection via crafted archives
MEDIUM 5.0
At a glance
- Source
- NVD
- EPSS
- EPSS 0.43 % · percentile 37 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Modified
Description
A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading to hidden file injection with fully attacker-controlled content. This bypasses pre-extraction inspection mechanisms, potentially allowing an attacker to introduce malicious files onto a system without detection.
Weaknesses (CWE)
- CWE-434 — Unrestricted Upload of File with Dangerous Type
References
- https://access.redhat.com/errata/RHSA-2026:61581
- https://access.redhat.com/errata/RHSA-2026:61586
- https://access.redhat.com/errata/RHSA-2026:61783
- https://access.redhat.com/errata/RHSA-2026:66018
- https://access.redhat.com/errata/RHSA-2026:66514
- https://access.redhat.com/errata/RHSA-2026:70390
- https://access.redhat.com/security/cve/CVE-2026-5704
- https://bugzilla.redhat.com/show_bug.cgi?id=2455360
- http://www.openwall.com/lists/oss-security/2026/04/11/10
- http://www.openwall.com/lists/oss-security/2026/04/11/11
- http://www.openwall.com/lists/oss-security/2026/04/12/2
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.0 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N | redhat |
| CVSS 3.1 | MEDIUM 5.0 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N | NVD · secalert@redhat.com (Secondary) |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2026-19317
- GCVE · GCVE-0-2026-5704
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1249 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:gnu:tar:-:*:*:*:*:*:*:*cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Red Hat · Red Hat Enterprise Linux 10 | unaffected 2:1.35-13.el10_2 < * |
| Red Hat · Red Hat Enterprise Linux 8 | unaffected 2:1.30-13.el8_10 < * |
| Red Hat · Red Hat Enterprise Linux 9 | unaffected 2:1.34-13.el9_8 < * |
| Red Hat · Red Hat Discovery 2 | unaffected 1788205779 < * |
| Red Hat · Red Hat Hardened Images | unaffected 1.35-10.hum1 < * |
| Red Hat · Red Hat Update Infrastructure 5 | unaffected 1788880445 < * |
| Red Hat · Red Hat Update Infrastructure 5 | unaffected 1788880464 < * |
| Red Hat · Red Hat Update Infrastructure 5 | unaffected 1788880456 < * |
| Red Hat · Red Hat Update Infrastructure 5 | unaffected 1788765051 < * |
| Red Hat · Red Hat Update Infrastructure 5 | unaffected 1788880581 < * |
| Red Hat · Red Hat Enterprise Linux 6 | |
| Red Hat · Red Hat Enterprise Linux 7 |
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 |