CVE-2026-107378highCWE-407

CVE-2026-107378: high-severity vulnerability in Kozea CairoSVG

CairoSVG: Quadratic-time DoS parsing a crafted SVG <path>

Published

Follow this CVE+ Monitor CairoSVG+ Monitor cairosvg

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.7epss 0.4%
CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to 2.9.1, rendering an attacker-controlled SVG with a path containing many segments can cause quadratic CPU consumption in cairosvg/path.py. The path tokenizer repeatedly slices and rescans the remaining path data, while draw_markers drains node.vertices with node.vertices.pop(0), causing repeated linear-time work. The svg2png, svg2pdf, and svg2ps APIs reach these operations during ordinary rendering, allowing a sub-megabyte SVG to consume substantial CPU and deny service to a rendering application. This issue is fixed in version 2.9.1.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
Kozea · CairoSVG
Related CVEs — Kozea CairoSVG

In the same product, most dangerous first.

CVE-2021-21236MEDIUMRegular Expression Denial of Service in CairoSVGEPSS 1.4%CVE-2023-27586CRITICALCairoSVG improperly processes SVG files loaded from external resourcesEPSS 0.7%CVE-2026-31899HIGHCairoSVG vulnerable to Exponential DoS via recursive <use> element amplificationEPSS 0.5%