image-size up to 1.2.0/2.0.1 Image findBox infinite loop

Summaryinfo

A vulnerability identified as problematic has been detected in image-size up to 1.2.0/2.0.1. This affects the function findBox of the component Image Handler. Performing a manipulation results in infinite loop. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is reported as CVE-2025-71319. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in image-size up to 1.2.0/2.0.1. It has been classified as problematic. This affects the function findBox of the component Image Handler. The manipulation with an unknown input leads to a infinite loop vulnerability. CWE is classifying the issue as CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. This is going to have an impact on availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-71319 since 06/08/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 322362 (Linux Distros Unpatched Vulnerability : CVE-2025-71319), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.2.1 or 2.0.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (322362). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• image-size

Version

• 1.0
• 1.1
• 1.2.0
• 2.0.0
• 2.0.1

Support

• end of life

Website

• Product: https://github.com/image-size/image-size/

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CPE 2.2info

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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