Veille CVE
CVE-2026-11837
7.3 ÉlevéeDescription
A local privilege escalation vulnerability was found in the ansible.posix authorized_key module. The module's keyfile() function uses os.chown() instead of os.lchown() and opens files without O_NOFOLLOW when managing SSH authorized keys. An unprivileged local user can pre-stage symbolic links in their ~/.ssh directory to redirect file ownership changes to arbitrary system paths when an operator runs the authorized_key task as root, leading to local privilege escalation.
Produits concernés
- Red Hat Enterprise Linux 10.0 Extended Update Support
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
- Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
- Red Hat Enterprise Linux 8.8 Telecommunications Update Service
- Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenStack Platform 17.1
- Red Hat OpenStack Platform 18.0
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 7.3 Élevée | secalert@redhat.com | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
| 3.1 | 7.3 Élevée | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
Faiblesses (CWE)
Références
- https://access.redhat.com/errata/RHSA-2026:79112
- https://access.redhat.com/errata/RHSA-2026:80508
- https://access.redhat.com/errata/RHSA-2026:82339
- https://access.redhat.com/security/cve/CVE-2026-11837
- https://bugzilla.redhat.com/show_bug.cgi?id=2487424
- https://access.redhat.com/security/cve/CVE-2026-11837
- https://bugzilla.redhat.com/show_bug.cgi?id=2487424
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-11837.json