CVE-2025-71329
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductImage-size
PublishedJun 10, 2026
First seenJun 10, 2026
Weakness typeCWE-835CWE-835
How to fix
Update
- image-size2.0.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| image-size image-size | 1.1.0 ≤ v ≤ 1.2.1, 2.0.0 ≤ v ≤ 2.0.2 | — |
| image-sizenpm | 1.2.0 ≤ v < 2.0.3 | 2.0.3 |
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