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7.8

ImageMagick allows attackers to bypass security controls when reading/writing from standard streams

DEBIAN-CVE-2026-25966
Summary

ImageMagick's default security settings can be bypassed, potentially allowing attackers to read or write sensitive data. This affects older versions of ImageMagick, but a patch is available to fix the issue. To stay secure, you should either upgrade to a patched version or manually apply the security patches to your configuration.

What to do
  • Update debian imagemagick to version 8:7.1.1.43+dfsg1-1+deb13u6.
  • Update debian imagemagick to version 8:7.1.2.15+dfsg1-1.
Affected software
VendorProductAffected versionsFix available
debian imagemagick All versions –
debian imagemagick All versions –
debian imagemagick <= 8:7.1.1.43+dfsg1-1+deb13u6 8:7.1.1.43+dfsg1-1+deb13u6
debian imagemagick <= 8:7.1.2.15+dfsg1-1 8:7.1.2.15+dfsg1-1
Original title
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...
Original description
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.
osv CVSS3.1 7.8
Published: 24 Feb 2026 · Updated: 13 Mar 2026 · First seen: 10 Mar 2026