A vulnerability was detected in Artifex MuPDF up to 1.28.5. This impacts the function free_char_list of the file source/pdf/pdf-xref.c of the component Signature Locking. Performing a manipulation results in double free. The attack may be initiated remotely. The exploit is now public and may be used. The patch is named 3984925b660afb8a781ddf504021e91be1bc671e. To fix this issue, it is recommended to deploy a patch.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-2fd016c93c advisory.

    fix CVE-2026-112036 (rhbz#2558213)

Tenable has extracted the preceding description block directly from the Fedora 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 a vulnerability as referenced in the FEDORA-2026-dd418bdfde advisory.

    fix CVE-2026-112036 (rhbz#2558213)

Tenable has extracted the preceding description block directly from the Fedora 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 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-10ad8af11a advisory.

    fix CVE-2026-112036 (rhbz#2558213)

Tenable has extracted the preceding description block directly from the Fedora 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 46 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-70d51c6891 advisory.

    Automatic update for mupdf-1.28.2-4.fc46.

    ##### **Changelog**

    ```
    * Fri Oct 23 2026 Michael J Gruber <mjg@fedoraproject.org> - 1.28.2-4
    - fix CVE-2026-112036 (rhbz#2558213)

    ```

Tenable has extracted the preceding description block directly from the Fedora 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A vulnerability was detected in Artifex MuPDF up to 1.28.5. This impacts the function free_char_list of     the file source/pdf/pdf-xref.c of the component Signature Locking. Performing a manipulation results in     double free. The attack may be initiated remotely. The exploit is now public and may be used. The patch is     named 3984925b660afb8a781ddf504021e91be1bc671e. To fix this issue, it is recommended to deploy a patch.
    (CVE-2026-112036)

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

ID	Name	Product	Family	Type	Severity
374742	Fedora 43 : mupdf (2026-2fd016c93c)	Nessus	Fedora Local Security Checks	Local	medium
374719	Fedora 45 : mupdf (2026-dd418bdfde)	Nessus	Fedora Local Security Checks	Local	medium
371984	Fedora 44 : mupdf (2026-10ad8af11a)	Nessus	Fedora Local Security Checks	Local	medium
371235	Fedora 46 : mupdf (2026-70d51c6891)	Nessus	Fedora Local Security Checks	Local	medium
367298	Linux Distros Unpatched Vulnerability : CVE-2026-112036	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-112036

medium

Tenable Plugins

medium

medium

medium

medium

medium