high7.5
CVE-2025-71329
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 spe…
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | image-size | >= 1.2.0, <= 2.0.2 | 2.0.3 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Image-Size | Image-Size | from 1.1.0 through 1.2.1 from 2.0.0 through 2.0.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-5p2g-fcmc-qvqq
- https://nvd.nist.gov/vuln/detail/CVE-2025-71329
- 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
- https://codeberg.org/image-size/image-size/commit/e6e83a5578961de81f6d5834d90fb7430d8f29a5