CImg Library is a C++ library for image processing. Prior to commit 4ca26bc, there is an integer overflow vulnerability in the W*H*D size computation inside _load_pnm() that can bypass the memory allocation guard. A crafted PNM/PGM/PPM file with large dimension values causes the overflow to wrap around, allocating an undersized buffer and potentially triggering a heap buffer overflow. Any application using CImg to load untrusted image files is affected. This issue has been patched via commit 4ca26bc.

The remote Fedora 45 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-4084e20f7e advisory.

    Automatic update for krita-6.0.2.1-1.fc45.

    ##### **Changelog**

    ```
    * Wed Jun 17 2026 Than Ngo <than@redhat.com> - 6.0.2.1-1
    - Fix rhbz#2481429, Update to 6.0.2.1
    - Fix rhbz#2476570, CVE-2026-42144: integer overflow in PNM size check bypasses memory guard

    ```

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 43 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2026-86596f9cbc advisory.

    bump version + fix two cves

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.

  - CImg Library is a C++ library for image processing. Prior to commit 4ca26bc, there is an integer overflow     vulnerability in the W*H*D size computation inside _load_pnm() that can bypass the memory allocation     guard. A crafted PNM/PGM/PPM file with large dimension values causes the overflow to wrap around,     allocating an undersized buffer and potentially triggering a heap buffer overflow. Any application using     CImg to load untrusted image files is affected. This issue has been patched via commit 4ca26bc.
    (CVE-2026-42144)

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

ID	Name	Product	Family	Severity
321387	Fedora 45 : krita (2026-4084e20f7e)	Nessus	Fedora Local Security Checks	medium
317519	Fedora 43 : CImg / gmic (2026-86596f9cbc)	Nessus	Fedora Local Security Checks	medium
312199	Linux Distros Unpatched Vulnerability : CVE-2026-42144	Nessus	Misc.	medium

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CVE-2026-42144

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