CVE-2026-56369

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.

CVSS v3.1 Score

3.7

LOW

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS — Exploit Prediction

0.0023

Probability of exploitation

0.14%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-323 CWE-323

Affected Products

Vendor	Product	Versions
imagemagick	imagemagick	< 6.9.13-47
imagemagick	imagemagick	7.0.0-0 — 7.1.2-22

References

Advisories & Patches

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-qv2q-c278-pch5

Other References

https://www.vulncheck.com/advisories/imagemagick-information-disclosure-via-aes-ctr-nonce-reuse-in-passkeyencipherimage

Frequently Asked Questions

What is CVE-2026-56369? +

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. It has a CVSS v3.1 base score of 3.7 (LOW).

How severe is CVE-2026-56369? +

CVE-2026-56369 has a CVSS v3.1 score of 3.7 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0023, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-56369? +

CVE-2026-56369 affects products from imagemagick, specifically: imagemagick. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-56369? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-13602

We found a chain of combining multiple weaknesses in the product that could allow an attacker to become any user …

CVE-2025-61739

Due to Nonce reuse, attackers can perform reply attack or decrypt captured packets.

CVE-2026-59099 9.1

Apereo CAS 7.3.0 before 8.0.0-RC6 contains a cryptographic vulnerability that allows remote unauthenticated attackers to recover plaintext conversation state by …

CVE-2025-64767 9.1

hpke-js is a Hybrid Public Key Encryption (HPKE) module built on top of Web Cryptography API. Prior to version 1.7.5, …

CVE-2026-12205 9.1

Crypt::DSA versions before 1.21 for Perl reused the nonce across signatures, leading to private-key recovery. Crypt::DSA::sign caches the per-signature nonce …

CVE-2026-49952 9.1

Discuz! X5.0 releases 20260320 through 20260501 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to gain unauthorized access …