CVE-2026-31899
CairoSVG vulnerable to Exponential DoS via recursive <use> element amplification
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 7.5EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
13 Mar 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Kozea · CairoSVGWant to know if your infrastructure is exposed to this?
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