Missing Authorization in ImageMagick - CVE-2026-55628

Vulnerability identifier: #VU135670

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-55628

CWE-ID: CWE-862

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to read and write files in paths disallowed by the security policy.

The vulnerability exists due to missing authorization in the -concatenate operation when processing file paths. A local user can invoke the concatenate operation with disallowed paths to read and write files in paths disallowed by the security policy.

ImageMagick
openEuler
ImageMagick-help
ImageMagick-perl
ImageMagick-devel
ImageMagick-debugsource
ImageMagick-debuginfo
ImageMagick-c++-devel
ImageMagick-c++
ImageMagick

Install security update from vendor's website.

ImageMagick - addressed in versions 6.9.13-51, 7.1.2-26
ImageMagick-help - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-perl - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-devel - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-debugsource - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-debuginfo - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-c++-devel - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-c++ - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick - addressed in versions 6.9.13.51-1, 7.1.2.26-1

• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-82mp-vp5c-9pf7

• Multiple vulnerabilities in ImageMagick
• openEuler 24.03 LTS SP3 update for ImageMagick
• openEuler 24.03 LTS SP1 update for ImageMagick
• openEuler 22.03 LTS SP4 update for ImageMagick
• openEuler 20.03 LTS SP4 update for ImageMagick