ImageMagick up to 7.1.2-14 ASHLAR Image Parser memory leak

Summaryinfo

A vulnerability has been found in ImageMagick up to 7.1.2-14 and classified as problematic. This issue affects some unknown processing of the component ASHLAR Image Parser. The manipulation leads to memory leak. This vulnerability is listed as CVE-2026-25637. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in ImageMagick up to 7.1.2-14. This issue affects an unknown part of the component ASHLAR Image Parser. The manipulation with an unknown input leads to a memory leak vulnerability. Using CWE to declare the problem leads to CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. Impacted is availability. The summary by CVE is:

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-15, a memory leak in the ASHLAR image writer allows an attacker to exhaust process memory by providing a crafted image that results in small objects that are allocated but never freed. Version 7.1.2-15 contains a patch.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-25637 since 02/04/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 299947 (Linux Distros Unpatched Vulnerability : CVE-2026-25637), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 7.1.2-15 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 30ce0e8efbd72fd6b50ed3a10ae22f57c8901137 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (299947) and CERT Bund (WID-SEC-2026-0484). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• SUSE openSUSE
• Open Source ImageMagick

Productinfo

Type

• Image Processing Software

Name

• ImageMagick

Version

• 7.1.2-14

License

• open-source

Website

• Product: https://www.imagemagick.org/

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