CVE-2021-29059: Is-Svg Project Is-Svg

High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days.

A vulnerability was discovered in IS-SVG version 2.1.0 to 4.2.2 and below where a Regular Expression Denial of Service (ReDOS) occurs if the application is provided and checks a crafted invalid SVG string.

Affected products

• Is-Svg Project Is-Svg: from 2.1.0, before 4.3.0 (fixed in 4.3.0)

Published 2021-06-21. Last modified 2026-06-17.