CVE-2025-71329 — image-size 2.0.2 Denial of Service via Infinite Loop in JXL/HEIF Parser
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 ima…
Published: 2026-06-10 · CVSS: 8.7 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7