acl < 2.4.0 Symlink Traversal Privilege Escalation via libacl Functions (acl project acl)
En bref
- Source
- NVD
- EPSS
- EPSS 0.15 % · centile 4 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- VulnCheck
- Statut NVD
- Deferred
Rechercher sur…
Description
acl before version 2.4.0 contains a symlink traversal vulnerability in the libacl pathname-based functions acl_get_file(), acl_set_file(), acl_extended_file(), and acl_delete_def_file() that allows local attackers to escalate privileges by replacing any pathname component with a symbolic link. Attackers who control any component of a pathname processed by a privileged caller can redirect ACL read or write operations to arbitrary files or directories, enabling unauthorized manipulation of access control lists and local privilege escalation.
Faiblesses (CWE)
- CWE-59 — Suivi de lien non maîtrisé
Références
- https://cgit.git.savannah.nongnu.org/cgit/acl.git/commit/?id=3589787cd589b34bdd9265936e17190b6d3f17d1
- https://cgit.git.savannah.nongnu.org/cgit/acl.git/commit/?id=24a227d0ab8576612194f8a56c2314389adc74a5
- https://www.vulncheck.com/advisories/acl-symlink-traversal-privilege-escalation-via-libacl-functions
- https://access.redhat.com/security/cve/CVE-2026-54369
- https://bugzilla.redhat.com/show_bug.cgi?id=2490277
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54369.json
- https://access.redhat.com/errata/RHSA-2026:54769
- https://access.redhat.com/errata/RHSA-2026:64805
- https://access.redhat.com/errata/RHSA-2026:42739
- https://access.redhat.com/errata/RHSA-2026:67142
- https://access.redhat.com/errata/RHSA-2026:67144
- https://access.redhat.com/errata/RHSA-2026:67140
- https://access.redhat.com/errata/RHSA-2026:42736
- https://access.redhat.com/errata/RHSA-2026:43420
- https://access.redhat.com/errata/RHSA-2026:46836
- https://access.redhat.com/errata/RHSA-2026:34351
- https://access.redhat.com/errata/RHSA-2026:53371
- https://access.redhat.com/errata/RHSA-2026:50205
- https://access.redhat.com/errata/RHSA-2026:44481
- https://access.redhat.com/errata/RHSA-2026:58981
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 4.0 | HIGH 8.4 | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | VulnCheck |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | redhat-SADP |
| CVSS 4.0 | HIGH 8.4 | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD · disclosure@vulncheck.com (Secondary) |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | NVD · disclosure@vulncheck.com (Secondary) |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-40085
- GCVE · GCVE-0-2026-54369
Avis du CERT-FR
- CERTFR-2026-AVI-1431 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- 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
- CERTFR-2026-AVI-1125 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1094 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| acl project · acl | affected 0 < 2.4.0 |
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 |