HIGH7.5
GHSA-5p2g-fcmc-qvqq
image-size: JXL and HEIF parsers allow denial of service through infinite loops
Quick fix
GHSA-5p2g-fcmc-qvqq — image-size: upgrade to the fixed version with the command below.
npm install image-size@2.0.3Details
image-size through 2.0.2 contains a denial of service vulnerability that allows remote attackers to permanently block the Node.js event loop by supplying a specially crafted image buffer with a zero-valued size field in a recognized box-type. Attackers can trigger an infinite loop in the JXL or HEIF image parsers by providing a crafted image containing a box with a size of zero, causing the offset to never advance and permanently hanging the application.
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-71329[ADVISORY]
- https://codeberg.org/image-size/image-size/commit/e6e83a5578961de81f6d5834d90fb7430d8f29a5[WEB]
- https://github.com/image-size/image-size[PACKAGE]
- https://joshua.hu/image-size-infinite-loop-dos-vulnerabilities[WEB]
- https://web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439[WEB]
- https://www.vulncheck.com/advisories/image-size-denial-of-service-via-infinite-loop-in-jxl-heif-parser[WEB]