What’s Vulnerable › Vulnerabilities

CVE-2026-56369: ImageMagick - Information Disclosure via AES-CTR Nonce Reuse in PasskeyEncipherImage

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-30 · updated 2026-10-29
• Weakness: CWE-323

Description

ImageMagick before 7.1.2-22 contains an information disclosure vulnerability in the PasskeyEncipherImage method due to AES-CTR nonce reuse. Attackers can exploit nonce reuse in the cipher implementation to recover plaintext information from encrypted images.

Affected products

• ImageMagick: before 6.9.13-47; from 7.0.0-0 before 7.1.2-22 — fixed in 6.9.13-47, 7.1.2-22
• ImageMagick: from 7.0.0 before 7.1.2-22 — fixed in 7.1.2-22

How to fix

Upgrade to a fixed version: ImageMagick 6.9.13-47, 7.1.2-22; ImageMagick 7.1.2-22. Check the vendor advisory for mitigations.

References

• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-qv2q-c278-pch5
• https://www.vulncheck.com/advisories/imagemagick-information-disclosure-via-aes-ctr-nonce-reuse-in-passkeyencipherimage

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