What’s Vulnerable › Vulnerabilities

CVE-2026-66011: ImageMagick before 7.1.2-27 Memory Leak via Invalid CLI Options

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-25 · updated 2026-08-04
• Weakness: CWE-401

Description

ImageMagick before 7.1.2-27 contains a memory leak vulnerability in the magick command-line interface when invalid options are provided. Attackers can trigger memory exhaustion by repeatedly supplying malformed command-line arguments to consume system resources.

Affected products

• ImageMagick: before 7.1.2-27 — fixed in 7.1.2-27

How to fix

Upgrade to a fixed version: ImageMagick 7.1.2-27. Check the vendor advisory for mitigations.

References

• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-cvhv-g4rq-3hmw
• https://www.vulncheck.com/advisories/imagemagick-before-27-memory-leak-via-invalid-cli-options

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