What’s Vulnerable › Vulnerabilities
CVE-2026-25796: ImageMagick has memory leak of watermark Image object in ReadSTEGANOImage on multiple error/early-return paths
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-02-24 · updated 2026-06-17
- Weakness: CWE-401
Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, in `ReadSTEGANOImage()` (`coders/stegano.c`), the `watermark` Image object is not freed on three early-return paths, resulting in a definite memory leak (~13.5KB+ per invocation) that can be exploited for denial of service. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
Affected products
- ImageMagick: before 6.9.13-40; from 7.0.0-0 before 7.1.2-15 — fixed in 6.9.13-40, 7.1.2-15
How to fix
Upgrade to a fixed version: ImageMagick 6.9.13-40, 7.1.2-15. Check the vendor advisory for mitigations.
References
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