{
  "cvss": 7.3,
  "datePublished": "2026-06-10T05:16:38.510",
  "dateUpdated": "2026-09-09T13:18:32.693",
  "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.",
  "id": "CVE-2026-11837",
  "raw": {
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            "cpes": [
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    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "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."
      },
      {
        "lang": "es",
        "value": "Una vulnerabilidad de escalada de privilegios local fue encontrada en el módulo ansible.posix authorized_key. La función keyfile() del módulo utiliza os.chown() en lugar de os.lchown() y abre archivos sin O_NOFOLLOW al gestionar claves SSH autorizadas. Un usuario local sin privilegios puede preconfigurar enlaces simbólicos en su directorio ~/.ssh para redirigir los cambios de propiedad de archivos a rutas de sistema arbitrarias cuando un operador ejecuta la tarea authorized_key como root, lo que lleva a una escalada de privilegios local."
      }
    ],
    "id": "CVE-2026-11837",
    "lastModified": "2026-09-09T13:18:32.693",
    "metrics": {
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          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
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          "type": "Secondary"
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
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              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
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            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-06-10T13:57:35.655997Z",
            "version": "2.0.3"
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    "published": "2026-06-10T05:16:38.510",
    "references": [
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        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/security/cve/CVE-2026-11837"
      },
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        "source": "secalert@redhat.com",
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        "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-11837.json"
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    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Awaiting Analysis",
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        "description": [
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            "value": "CWE-59"
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  },
  "severity": "HIGH",
  "source": "nvd",
  "title": "A local privilege escalation vulnerability was found in the ansible.posix authorized_key module"
}