CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive <use> element amplification in cairosvg/defs.py. This causes CPU exhaustion from a small input.

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-448e26a9c8 advisory.

    Security fix for CVE-2026-31899: https://nvd.nist.gov/vuln/detail/CVE-2026-31899 /     https://github.com/Kozea/CairoSVG/security/advisories/GHSA-f38f-5xpm-9r7c

    Exponential DoS via recursive <use> element amplification


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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:1421-1 advisory.

    This update for python-CairoSVG fixes the following issue:

    - CVE-2026-31899: denial of service via recursive <use> element amplification (bsc#1259690).

Tenable has extracted the preceding description block directly from the SUSE 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 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-a2778fcae6 advisory.

    Security fix for CVE-2026-31899: https://nvd.nist.gov/vuln/detail/CVE-2026-31899 /     https://github.com/Kozea/CairoSVG/security/advisories/GHSA-f38f-5xpm-9r7c

    Exponential DoS via recursive <use> element amplification


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 a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-ec61ca906c advisory.

    Security fix for CVE-2026-31899: https://nvd.nist.gov/vuln/detail/CVE-2026-31899 /     https://github.com/Kozea/CairoSVG/security/advisories/GHSA-f38f-5xpm-9r7c

    Exponential DoS via recursive <use> element amplification


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.

  - CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has     exponential denial of service via recursive <use> element amplification in cairosvg/defs.py. This causes     CPU exhaustion from a small input. (CVE-2026-31899)

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

ID	Name	Product	Family	Severity
310257	Fedora 44 : python-cairosvg (2026-448e26a9c8)	Nessus	Fedora Local Security Checks	high
307434	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : python-CairoSVG (SUSE-SU-2026:1421-1)	Nessus	SuSE Local Security Checks	high
306609	Fedora 42 : python-cairosvg (2026-a2778fcae6)	Nessus	Fedora Local Security Checks	high
306605	Fedora 43 : python-cairosvg (2026-ec61ca906c)	Nessus	Fedora Local Security Checks	high
302268	Linux Distros Unpatched Vulnerability : CVE-2026-31899	Nessus	Misc.	high

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CVE-2026-31899

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