There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. In versions up to and
    including 10.21.3, the b64 extension is vulnerable to a path traversal that discloses arbitrary files: it
    inlines images referenced by <img src="..."> by joining the src onto the configured base_path with
    os.path.normpath and opening the result directly, without verifying that the resolved path stays inside
    base_path. As a result, an src containing ../ sequences or an absolute path reads a file outside base_path
    as long as it has an allowed image extension (.png, .jpg, .jpeg, .gif, .svg), and the file's contents are
    then base64-encoded into the rendered output, disclosing them. An application that renders untrusted
    Markdown with pymdownx.b64 enabled can therefore leak the contents of image-extension files readable by
    the process to whoever controls the Markdown or views the output, a targeted file-read bounded by the
    extension check. This issue has been fixed in version 11.0. (CVE-2026-61632)

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

  - PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. In versions up to and     including 10.21.3, the b64 extension is vulnerable to a path traversal that discloses arbitrary files: it     inlines images referenced by <img src=...> by joining the src onto the configured base_path with     os.path.normpath and opening the result directly, without verifying that the resolved path stays inside     base_path. As a result, an src containing ../ sequences or an absolute path reads a file outside base_path     as long as it has an allowed image extension (.png, .jpg, .jpeg, .gif, .svg), and the file's contents are     then base64-encoded into the rendered output, disclosing them. An application that renders untrusted     Markdown with pymdownx.b64 enabled can therefore leak the contents of image-extension files readable by     the process to whoever controls the Markdown or views the output, a targeted file-read bounded by the     extension check. This issue has been fixed in version 11.0. (CVE-2026-61632)

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

The remote Fedora 46 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-de1da3cf3b advisory.

    Automatic update for python-pymdown-extensions-12.3-1.fc46.

    ##### **Changelog**

    ```
    * Sun Nov  8 2026 Mattia Verga <mattia.verga@proton.me> - 12.3-1
    - Update to 12.3 (Fedora#2383999)
    - Fix CVE-2026-61632 (Fedora#2512418)
    - Fix CVE-2026-67422 (Fedora#2512405)

    ```

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.

ID	名稱	產品	系列	已發布	已更新	嚴重性
462924	Echo: pymdown-extensions: security update to 11.0.0	Tenable Cloud Security	Echo Local Security Checks	2026/10/2	2026/10/5	medium
445281	SCA: security update for pymdown-extensions (GHSA-9xwg-3r6f-jcx2)	Tenable Self-Hosted Container Security	SCA Checks	2026/7/24	2026/8/7	medium
462924	Echo: pymdown-extensions: security update to 11.0.0	Tenable Self-Hosted Container Security	Echo Local Security Checks	2026/10/2	2026/10/5	medium
445281	SCA: security update for pymdown-extensions (GHSA-9xwg-3r6f-jcx2)	Tenable Cloud Security	SCA Checks	2026/7/24	2026/8/7	medium
333365	Linux Distros Unpatched Vulnerability : CVE-2026-61632	Nessus	Misc.	2026/8/7	2026/11/9	medium
377576	Fedora 46 : python-pymdown-extensions (2026-de1da3cf3b)	Nessus	Fedora Local Security Checks	2026/11/8	2026/11/8	medium

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