A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions (Xincludes) with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-130050 advisory.

    A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions (Xincludes)     with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because     the library incorrectly frees an XML entity that is still in use by the parser. An attacker could     potentially exploit this to cause a denial of service or execute arbitrary code.

Tenable has extracted the preceding description block directly from the Unity 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 Debian 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6555 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6555-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     October 12, 2026                      https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : librsvg     CVE ID         : CVE-2026-96889

    It was discovered that librsvg, a library to render Scalable Vector     Graphics, incorrectly parsed files with nested XML includes, which could     result in denial of service or potentially the execution of arbitrary     code.

    For the stable distribution (trixie), this problem has been fixed in     version 2.60.0+dfsg-1+deb13u1.

    We recommend that you upgrade your librsvg packages.

    For the detailed security status of librsvg please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/librsvg

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian 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 Ubuntu 24.04 LTS / 26.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8891-1 advisory.

    It was discovered that librsvg incorrectly handled duplicate XML entity declarations while processing SVG     documents containing nested XML inclusions. An attacker could possibly use this issue to cause a denial of     service or execute arbitrary code.

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

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

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

  - A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions (Xincludes)
    with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because
    the library incorrectly frees an XML entity that is still in use by the parser. An attacker could
    potentially exploit this to cause a denial of service or execute arbitrary code. (CVE-2026-96889)

The remote Fedora 45 host has packages installed that are affected by a vulnerability as referenced in the FEDORA-2026-1e23d80c94 advisory.

    Update librsvg to version 2.63.2.

    This includes a fix for a potential use-after-free bug (assigned     [RUSTSEC-2026-0305](https://rustsec.org/advisories/RUSTSEC-2026-0305.html), also assigned CVE-2026-96889 -     see [upstream bug report](https://gitlab.gnome.org/GNOME/librsvg/-/work_items/1241)).



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 flaw was found in librsvg. When processing an SVG document containing nested XML inclusions (Xincludes)     with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because     the library incorrectly frees an XML entity that is still in use by the parser. An attacker could     potentially exploit this to cause a denial of service or execute arbitrary code. (CVE-2026-96889)

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

ID	Name	Product	Family	Type	Severity
365817	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: librsvg2 (UTSA-2026-130050)	Nessus	Unity Linux Local Security Checks	Local	high
365112	Debian dsa-6555 : gir1.2-rsvg-2.0 - security update	Nessus	Debian Local Security Checks	Local	high
364282	Ubuntu 24.04 LTS / 26.04 LTS : librsvg vulnerability (USN-8891-1)	Nessus	Ubuntu Local Security Checks	Local	high
458887	Echo: librsvg: security update to 2.60.0+dfsg-1+e1	Tenable Cloud Security	Echo Local Security Checks	Local	high
458887	Echo: librsvg: security update to 2.60.0+dfsg-1+e1	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
350703	Fedora 45 : librsvg2 / rust-librsvg / rust-xml5ever (2026-1e23d80c94)	Nessus	Fedora Local Security Checks	Local	high
349587	Linux Distros Unpatched Vulnerability : CVE-2026-96889	Nessus	Misc.	Local	high

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