CVE-2025-71330 HIGH

CVE-2025-71330: image-size 2.0.2 Denial of Service via Malformed ICNS Image Parsing

Vendor Image-Size
Product image-size
Weakness CWE-835
Published June 10, 2026
Last update June 10, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 10, 2026 CVE published
June 10, 2026 Record updated