CVE-2026-31899

Published: Mar 13, 2026

Modified: Mar 16, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

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.

Vendor	Product	Versions
Kozea	CairoSVG	affected `< 2.9.0`

Weaknesses (CWE)

CWE-674

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

https://github.com/Kozea/CairoSVG/security/advisories/GHSA-f38f-5xpm-9r7c

x_refsource_CONFIRM

https://github.com/Kozea/CairoSVG/commit/6dde8685ed3f19837767bce7a13a5491e3d0e0bf

x_refsource_MISC

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CVE-2026-31899

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References