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.

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:79112 advisory.

    A worker for yggdrasil that receives Ansible playbooks and executes them against the local host.

    Security Fix(es):

    * ansible-collection-ansible-posix: ansible.posix authorized_key: local privilege escalation via symlink-     following chown (CVE-2026-11837)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:80508 advisory.

    Python-based worker for Red Hat connect, used to launch Ansible playbooks via Ansible Runner.

    Security Fix(es):

    * ansible-collection-ansible-posix: ansible.posix authorized_key: local privilege escalation via symlink-     following chown (CVE-2026-11837)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:82339 advisory.

    Python-based worker for Red Hat connect, used to launch Ansible playbooks via Ansible Runner.

    Security Fix(es):

    * ansible-collection-ansible-posix: ansible.posix authorized_key: local privilege escalation via symlink-     following chown (CVE-2026-11837)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-50e5126be4 advisory.

    - Update to 2.2.1. Fixes rhbz#2479556.
    - Mitigates CVE-2026-11837 (rhbz#2487430, rhbz#2487431, rhbz#2487432)

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-0f941ecaa6 advisory.

    - Update to 2.2.1. Fixes rhbz#2479556.
    - Mitigates CVE-2026-11837 (rhbz#2487430, rhbz#2487431, rhbz#2487432)

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1932 advisory.

    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)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 45 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-4a0c61a43f advisory.

    Automatic update for ansible-collection-ansible-posix-2.2.1-1.fc45.

    ##### **Changelog**

    ```
    * Wed Jul  8 2026 Maxwell G <maxwell@gtmx.me> - 2.2.1-1
    - Update to 2.2.1. Fixes rhbz#2479556.
    - Mitigates CVE-2026-11837 (rhbz#2487430, rhbz#2487431, rhbz#2487432)

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
369292	RHEL 10 : rhc-worker-playbook (RHSA-2026:79112)	Nessus	Red Hat Local Security Checks	Local	high
368063	RHEL 8 : rhc-worker-playbook (RHSA-2026:80508)	Nessus	Red Hat Local Security Checks	Local	high
365497	RHEL 8 : rhc-worker-playbook (RHSA-2026:82339)	Nessus	Red Hat Local Security Checks	Local	high
327557	Fedora 43 : ansible-collection-ansible-posix (2026-50e5126be4)	Nessus	Fedora Local Security Checks	Local	high
327484	Fedora 44 : ansible-collection-ansible-posix (2026-0f941ecaa6)	Nessus	Fedora Local Security Checks	Local	high
327396	Amazon Linux 2023 : ansible (ALAS2023-2026-1932)	Nessus	Amazon Linux Local Security Checks	Local	high
325542	Fedora 45 : ansible-collection-ansible-posix (2026-4a0c61a43f)	Nessus	Fedora Local Security Checks	Local	high
320361	Linux Distros Unpatched Vulnerability : CVE-2026-11837	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-11837

high

Tenable Plugins

high

high

high

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high

high

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high