GHSA-5p2g-fcmc-qvqq
image-size: JXL and HEIF parsers allow denial of service through infinite loops
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | image-size | >= 1.2.0, < 2.0.3 | 2.0.3 |
Details
As written in the advisory (Markdown source, shown as plain text).
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
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2025-71329
- https://codeberg.org/image-size/image-size/commit/e6e83a5578961de81f6d5834d90fb7430d8f29a5
- https://github.com/image-size/image-size
- https://joshua.hu/image-size-infinite-loop-dos-vulnerabilities
- https://web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439
- https://www.vulncheck.com/advisories/image-size-denial-of-service-via-infinite-loop-in-jxl-heif-parser