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CVE-2026-56369

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

Published: 6/30/2026 Last updated: 7/1/2026 Reserved: 6/21/2026

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.

CNA assigner: VulnCheck (83251b91-4cc7-4094-a5c7-464a1b83ea10) Requested by: n/a

Metrics

Version Score Severity Vector String
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
3.1 3.7 Low CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Opam packages affected (2)

conf-libMagickCore ocsigen-start

Products affected (4)

Product Vendor Version
ImageMagick ImageMagick < 1.3.1
ImageMagick ImageMagick < 4.02
ImageMagick ImageMagick < 19.2R2
ImageMagick ImageMagick < 72.0.3626.81

References (4)

Credits (4)