SVGO, short for SVG Optimizer, is a Node.js library and command-line application for optimizing SVG files. From version 2.1.0 to before version 2.8.1, from version 3.0.0 to before version 3.3.3, and before version 4.0.1, SVGO accepts XML with custom entities, without guards against entity expansion or recursion. This can result in a small XML file (811 bytes) stalling the application and even crashing the Node.js process with JavaScript heap out of memory. This issue has been patched in versions 2.8.1, 3.3.3, and 4.0.1.

Project Subscriptions

Vendors Products
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-xpqw-6gx7-v673 SVGO DoS through entity expansion in DOCTYPE (Billion Laughs)
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 06 Mar 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 06 Mar 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Svg
Svg svgo
Vendors & Products Svg
Svg svgo

Fri, 06 Mar 2026 07:30:00 +0000

Type Values Removed Values Added
Description SVGO, short for SVG Optimizer, is a Node.js library and command-line application for optimizing SVG files. From version 2.1.0 to before version 2.8.1, from version 3.0.0 to before version 3.3.3, and before version 4.0.1, SVGO accepts XML with custom entities, without guards against entity expansion or recursion. This can result in a small XML file (811 bytes) stalling the application and even crashing the Node.js process with JavaScript heap out of memory. This issue has been patched in versions 2.8.1, 3.3.3, and 4.0.1.
Title SVGO: DoS through entity expansion in DOCTYPE (Billion Laughs)
Weaknesses CWE-776
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-06T16:05:10.968Z

Reserved: 2026-03-03T20:51:43.482Z

Link: CVE-2026-29074

cve-icon Vulnrichment

Updated: 2026-03-06T15:59:58.148Z

cve-icon NVD

Status : Received

Published: 2026-03-06T08:16:26.920

Modified: 2026-03-06T08:16:26.920

Link: CVE-2026-29074

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-06T14:55:25Z

Weaknesses