CVE-2026-31899
CairoSVG vulnerable to Exponential DoS via recursive <use> element amplification
7.5
HIGH
CVSS 3.1
EPSS 0.04%
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.
How to fix CVE-2026-31899
To remediate CVE-2026-31899, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 2.9.0 or later
Is CVE-2026-31899 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- from 0, < 2.9.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |