CVEvulnerability
CVE-2026-11837
7.3 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-06-10
- Last modified
- 2026-10-29
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.3 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.3 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-59
Description
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.
Related
Weakness · CWE (1)
- CWE-59 Improper Link Resolution Before File Access weakness
References
- https://access.redhat.com/errata/RHSA-2026:42946 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:79112 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:80508 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:82339 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-11837 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2487424 bugzilla.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-11837 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2487424 bugzilla.redhat.com
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-11837.json security.access.redhat.com