CVE-2026-31899

EUVD-2026-12091
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 39%
Affected Products (NVD)
VendorProductVersion
courtbouilloncairosvg
𝑥
< 2.9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
cairosvg
bookworm
no-dsa
bullseye
postponed
bullseye (security)
vulnerable
forky
vulnerable
sid
vulnerable
trixie
no-dsa
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
cairosvg
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
questing
ignored
resolute
needs-triage
xenial
ignored
Common Weakness Enumeration
References
https://github.com/Kozea/CairoSVG/commit/6dde8685ed3f19837767bce7a13a5491e3d0e0bf
https://github.com/Kozea/CairoSVG/security/advisories/GHSA-f38f-5xpm-9r7c