CVE-2026-56369

ImageMagick - Information Disclosure via AES-CTR Nonce Reuse in PasskeyEncipherImage

State: Published
Severity: 6.3 Medium
Published: Jun 30, 2026
Updated: Oct 29, 2026
Reserved: Jun 21, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.3 Medium	CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	3.7 Low	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N	VulnCheck

Weaknesses

CWE-323 Reusing a Nonce, Key Pair in Encryption

Affected Products

Product	Versions
ImageMagickImageMagick	7.0.0 to before 7.1.2-22Affected 7.1.2-22Not affected
ImageMagickImageMagick	before 6.9.13-47Affected 6.9.13-47Not affected

References

GitHub Security Advisory (GHSA-qv2q-c278-pch5)vendor-advisory
VulnCheck Advisory: ImageMagick - Information Disclosure via AES-CTR Nonce Reuse in PasskeyEncipherImagethird-party-advisory

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