CVE-2025-71329: image-size: JXL and HEIF parsers allow denial of service through infinite loops
(updated )
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.
References
- codeberg.org/image-size/image-size/commit/e6e83a5578961de81f6d5834d90fb7430d8f29a5
- github.com/advisories/GHSA-5p2g-fcmc-qvqq
- joshua.hu/image-size-infinite-loop-dos-vulnerabilities
- nvd.nist.gov/vuln/detail/CVE-2025-71329
- web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439
- www.vulncheck.com/advisories/image-size-denial-of-service-via-infinite-loop-in-jxl-heif-parser
Code Behaviors & Features
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