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

Quick assessment

Affected
image-size image-size
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

image-size是image-size开源的一个轻量级图片尺寸获取工具。 image-size 2.0.2及之前版本存在安全漏洞，该漏洞源于ICNS解析器中存在无限循环，可能导致远程攻击者通过提供特制ICNS图像缓冲区永久阻塞Node.js事件循环。

CVSS 7.5 · High EPSS 0.43% · P35

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 2

VendorProduct Version RangeStatus
image-size image-size 1.1.0≤ 1.2.1 affected
2.0.0≤ 2.0.2 affected
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I. Basic Information for CVE-2025-71330

Vulnerability Information
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Vulnerability Title
image-size 2.0.2 Denial of Service via Malformed ICNS Image Parsing
Source: CVE Program / CVE List V5
Vulnerability 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 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: CVE Program / CVE List V5
Vulnerability Title
image-size 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
image-size是image-size开源的一个轻量级图片尺寸获取工具。 image-size 2.0.2及之前版本存在安全漏洞，该漏洞源于ICNS解析器中存在无限循环，可能导致远程攻击者通过提供特制ICNS图像缓冲区永久阻塞Node.js事件循环。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
image-size image-size 1.1.0 ~ 1.2.1 -

II. Public POCs for CVE-2025-71330

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III. Intelligence Information for CVE-2025-71330

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Patches & Fixes for CVE-2025-71330 (1)

Vendor Advisories for CVE-2025-71330 (1)

Security Blog Posts for CVE-2025-71330 (1)

IV. Related Vulnerabilities

Same product: image-size
Same vendor: image-size
Same weakness: CWE-835

V. Comments for CVE-2025-71330

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