CVE-2026-25966

The record

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:<n> 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.

Affected packages

Related vulnerabilities

• GHSA-xwc6-v6g8-pw2h ImageMagick's Security Policy Bypass through config/policy-secure.xml via "fd handler"… Same vulnerability
• CVE-2026-27799 ImageMagick is free and open-source software used for editing and manipulating digital… Also affects Magick.NET-Q16-AnyCPU
• CVE-2026-27798 ImageMagick is free and open-source software used for editing and manipulating digital… Also affects Magick.NET-Q16-AnyCPU
• GHSA-r99p-5442-q2x2 ImageMagick has a heap Buffer Over-read in its DJVU image format handler Also affects Magick.NET-Q16-AnyCPU
• GHSA-qpgx-jfcq-r59f ImageMagick: Heap Buffer Over-read in WaveletDenoise when processing small images Also affects Magick.NET-Q16-AnyCPU
• GHSA-gq5v-qf8q-fp77 ImageMagick: Heap-based Buffer Overflow in GetPixelIndex due to metadata-cache… Also affects Magick.NET-Q16-AnyCPU
• GHSA-wfx3-6g53-9fgc ImageMagick: Memory Leak in multiple coders that write raw pixel data Also affects Magick.NET-Q16-AnyCPU
• GHSA-3q5f-gmjc-38r8 ImageMagick: Memory leak in coders/txt.c without freetype Also affects Magick.NET-Q16-AnyCPU