ImageMagick up to 6.9.13-39/7.1.2-14 Image Parser access control

Summaryinfo

A vulnerability identified as critical has been detected in ImageMagick up to 6.9.13-39/7.1.2-14. The impacted element is an unknown function of the component Image Parser. Performing a manipulation results in access control. This vulnerability is known as CVE-2026-25966. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in ImageMagick up to 6.9.13-39/7.1.2-14. This affects some unknown functionality of the component Image Parser. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

ImageMagick is free and open-source software used for editing and manipulating digital images. The shipped "secure" security policy includes a rule intended to prevent reading/writing from standard streams. However, ImageMagick also supports fd: pseudo-filenames (e.g., fd:0, fd:1). Prior to versions 7.1.2-15 and 6.9.13-40, this path form is not blocked by the secure policy templates, and therefore bypasses the protection goal of "no stdin/stdout." Versions 7.1.2-15 and 6.9.13-40 contain a patch by including a change to the more secure policies by default. As a workaround, add the change to one's security policy manually.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-25966 since 02/09/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for 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 T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 299907 (Linux Distros Unpatched Vulnerability : CVE-2026-25966), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.9.13-40 or 7.1.2-15 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (299907) 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

• 6.9.13-39
• 7.1.2-14

License

• open-source

Website

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

CPE 2.3info

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

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