ImageMagick up to 6.9.13-43/7.1.2-18 Image Parser integer overflow

Summaryinfo

A vulnerability has been found in ImageMagick up to 6.9.13-43/7.1.2-18 and classified as problematic. Impacted is an unknown function of the component Image Parser. This manipulation causes integer overflow. This vulnerability is handled as CVE-2026-34238. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in ImageMagick up to 6.9.13-43/7.1.2-18 and classified as problematic. Affected by this vulnerability is an unknown part of the component Image Parser. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect availability. The summary by CVE is:

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, an integer overflow in the despeckle operation causes a heap buffer overflow on 32-bit builds that will result in an out of bounds write. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-34238 since 03/26/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 311488 (Debian dsa-6240 : imagemagick - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.9.13-44 or 7.1.2-19 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch bcd8519c70ecd9ebbc180920f2cf97b267d1f440 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 (311488) and CERT Bund (WID-SEC-2026-1075). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• Amazon Linux 2
• SUSE Linux
• SUSE openSUSE
• Open Source ImageMagick

Productinfo

Type

• Image Processing Software

Name

• ImageMagick

Version

• 6.9.13-43
• 7.1.2-18

License

• open-source

Website

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

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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