CVE-2026-11837
Ansible-collection-ansible-posix: ansible.posix authorized_key: local privilege escalation via symlink-following chown
CVSS Score
7.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-59 |
| Vendor | red hat |
| Product | red hat enterprise linux 10 |
| Published | Jun 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 10
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat OpenStack Platform 17.1
All versions affected Red Hat / Red Hat OpenStack Platform 18.0
All versions affected