HIGH 7.5
GHSA-w3rx-r6r6-pgpr
image-size: ICNS parser allows denial of service through an infinite loop
Details
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 ICNS image buffer. Attackers can craft an ICNS buffer containing valid magic bytes and a zero-valued entry length field to trigger an infinite loop in the ICNS parser, as the offset is never incremented when the entry length field is 0, causing the while loop condition to remain true indefinitely.
Are you affected?
Enter the version of the package you're using.
Affected packages
npm / image-size
Introduced in:
0 No fixed version published yet for image-size (npm). Pin to a known-safe version or switch to an alternative.
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-71330 [ADVISORY]
- 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-malformed-icns-image-parsing [WEB]