CVE-2026-11837
High
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.
SeverityHigh
CVSS7.3
Exploit probability—
Product
Red Hat Enterprise Linux 10
PublishedJun 10, 2026
First seenJun 10, 2026
Weakness typeCWE-59Improper link resolution
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support | No range specified | — |
| rhel_aus 8.6 | No range specified | — |
| rhel_e4s 8.8 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 8 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 9 | No range specified | — |
| Red Hat Red Hat OpenStack Platform 17.1 | No range specified | — |
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