VULNERABILITY INTELLIGENCE
CVE-2026-11837
CVSS score7.3 HIGH
EPSS probability0.16%
CISA KEVNot currently listed
Published2026-06-10
Last modified2026-10-29
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
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.
Weakness classification
- secalert@redhat.com: CWE-59
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-59