CVE-2026-11837

Red Hat Enterprise Linux 10 · privilege escalation

CVSS 3.1 7.3 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-11837

Published

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.

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Affected versions, risk and source history

Exploitation and risk

Source status

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Risk history

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Advisory history

4 saved versions

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4 Nov 2026 22:54:02 UTC

Ansible-collection-ansible-posix: ansible.posix authorized_key: local privilege escalation via symlink-following chown

cve-program · CVE-2026-11837 · Published

2 Nov 2026 18:57:17 UTC

Ansible-collection-ansible-posix: ansible.posix authorized_key: local privilege escalation via symlink-following chown

cve-program · CVE-2026-11837 · Published

29 Oct 2026 16:12:12 UTC

Ansible-collection-ansible-posix: ansible.posix authorized_key: local privilege escalation via symlink-following chown

cve-program · CVE-2026-11837 · Published

23 Oct 2026 15:48:27 UTC

Ansible-collection-ansible-posix: ansible.posix authorized_key: local privilege escalation via symlink-following chown

cve-program · CVE-2026-11837 · Published