Vulnerability DatabaseCVE-2026-31899
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CVE-2026-31899
March 13, 2026
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.
Affected Packages
cairosvg (CONDA):
Affected version(s) >=2.0.0rc6 <2.9.0
Fix Suggestion:
Update to version 2.9.0
https://github.com/Kozea/CairoSVG.git (GITHUB):
Affected version(s) >=0.1 <2.9.0
Fix Suggestion:
Update to version 2.9.0
cairosvg (PYTHON):
Affected version(s) >=0.1 <2.9.0
Fix Suggestion:
Update to version 2.9.0
Related Resources (3)
https://github.com/Kozea/CairoSVG/security/advisories/GHSA-f38f-5xpm-9r7c
https://github.com/Kozea/CairoSVG/commit/6dde8685ed3f19837767bce7a13a5491e3d0e0bf
https://github.com/Kozea/CairoSVG
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Uncontrolled Resource Consumption
CWE-400
Uncontrolled Recursion
CWE-674
EPSS
Base Score:
0.06