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.
CVE-2026-11837
Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-06-10. a secondary CVSS source baseline 7.3; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.3
- EG Score
- 7.3(high)
- EPSS
- 2.7%
- KEV
- Not listed
Published
June 10, 2026
Last Modified
June 30, 2026
Advisory Details (2)
Auto-updated Jun 11, 20262487424 – (CVE-2026-11837) CVE-2026-11837 ansible-collection-ansible-posix: ansible.posix authorized_key: local privilege escalation via symlink-following chown
https://bugzilla.redhat.com/show_bug.cgi?id=2487424Vendor Advisories for CVE-2026-11837(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 30× in last 7d / 133× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 133 total refreshes for this CVE.
- 2026-07-06 16:27 UTCEPSS rescore
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- 2026-07-06 01:38 UTCEG score recompute
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- 2026-07-01 15:06 UTCEPSS rescore
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- 2026-07-01 04:10 UTCEG score recompute
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- 2026-06-27 13:12 UTCEG score recompute
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- 2026-06-27 00:48 UTCEG score recompute
- 2026-06-27 00:47 UTCGHSA enrichment
- 2026-06-26 12:23 UTCEG score recompute
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- 2026-06-25 23:03 UTCEG score recompute
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- 2026-06-25 13:49 UTCEPSS rescore
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- 2026-06-24 14:05 UTCEPSS rescore
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- 2026-06-23 08:35 UTCEG score recompute
- 2026-06-23 08:34 UTCGHSA enrichment
- 2026-06-22 18:27 UTCEG score recompute
- 2026-06-22 18:27 UTCGHSA enrichment
- 2026-06-22 14:25 UTCEPSS rescore
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- 2026-06-22 04:14 UTCEG score recompute
- 2026-06-22 04:14 UTCGHSA enrichment
- 2026-06-21 15:25 UTCEG score recompute
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- 2026-06-21 14:56 UTCEPSS rescore
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- 2026-06-21 02:55 UTCEG score recompute
- 2026-06-21 02:54 UTCGHSA enrichment
- 2026-06-21 01:59 UTCEPSS rescore
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- 2026-06-20 14:08 UTCEG score recompute
- 2026-06-20 14:08 UTCGHSA enrichment
- 2026-06-20 01:38 UTCEG score recompute
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- 2026-06-19 19:25 UTCEPSS rescore
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- 2026-06-18 17:52 UTCEPSS rescore
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- 2026-06-16 22:58 UTCGHSA enrichment
- 2026-06-16 17:52 UTCEPSS rescore
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Frequently asked(5)
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Dependency Blast Radius
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