CVE-2026-25983

A flaw was found in ImageMagick. A remote attacker could exploit a heap-use-after-free (UAF) vulnerability by providing a specially crafted MSL script. This vulnerability occurs when the operation element handler replaces and frees an image while the parser continues to read from it. Successful exploitation could lead to a denial of service.

This MODERATE impact vulnerability in ImageMagick allows a remote attacker to cause a denial of service or potentially execute arbitrary code through a heap-use-after-free flaw when processing a specially crafted MSL script. Red Hat Enterprise Linux 6 ELS and 7 ELS are affected if ImageMagick is installed and used to process untrusted image files.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

To mitigate this issue, avoid processing untrusted or unverified image files, particularly those in MSL format, with ImageMagick. Implement strict input validation and sanitization for any user-supplied image data before it is processed by ImageMagick to reduce the attack surface.