Ansible-collection-ansible-posix: ansible.posix authorized_key: local privilege escalation via symlink-following chown_CVE-2026-11837

{
    "lastseen": "",
    "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.",
    "published": "2026-06-10T05:03:05.734Z",
    "modified": "2026-06-10T05:03:05.734Z",
    "type": "cve",
    "title": "Ansible-collection-ansible-posix: ansible.posix authorized_key: local privilege escalation via symlink-following chown",
    "source": "redhat",
    "references": "https://access.redhat.com/security/cve/CVE-2026-11837\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2487424",
    "id": "CVE-2026-11837",
    "bulletinFamily": "",
    "cwe": [
        "CWE-59"
    ],
    "cvelist": null,
    "sourceData": "",
    "sourceHref": "",
    "cvss": {
        "score": 7.3,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Red Hat Enterprise Linux 10",
    "version": "",
    "vendor": "Red Hat",
    "ai_description": "",
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    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}