Kozea CairoSVG up to 2.9.0 Path Processing cairosvg/path.py draw_markers resource consumption

Summaryinfo

A vulnerability described as problematic has been identified in Kozea CairoSVG up to 2.9.0. This issue affects the function draw_markers of the file cairosvg/path.py of the component Path Processing. The manipulation results in resource consumption. This vulnerability was named CVE-2026-107378. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Kozea CairoSVG up to 2.9.0. It has been classified as problematic. Affected is the function draw_markers of the file cairosvg/path.py of the component Path Processing. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-107378 since 10/07/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 2.9.1 eliminates this vulnerability.

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Productinfo

Vendor

• Kozea

Name

• CairoSVG

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9.0

Website

• Product: https://github.com/Kozea/CairoSVG/

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