Missing Authorization in ImageMagick - CVE-2026-55628
Published: June 29, 2026
Vulnerability identifier: #VU135670
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2026-55628
CWE-ID: CWE-862
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: ImageMagick.org
Affected software:
ImageMagick
ImageMagick
Detailed vulnerability description
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.
How to mitigate CVE-2026-55628
Install security update from vendor's website.