CVE-2026-31899
CairoSVG vulnerable to Exponential DoS via recursive <use> element amplification
- State
- Published
- Severity
- 7.5 High
- Published
- Mar 13, 2026
- Updated
- Mar 16, 2026
- Reserved
- Mar 9, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | GitHub_M |
Weaknesses
- CWE-674 Uncontrolled Recursion
Affected Products
| Product | Versions |
|---|---|
CairoSVGKozea |
|
References
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