Vulnerabilities CVE-2026-74874

CVE-2026-74874

High

Open

TLP:CLEAR

openssl_encrypt before 1.4.0 Weak PRNG Steganography Pixel Selection

NVD CVE.org

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Description

openssl_encrypt versions before 1.4.0 use Python's non-cryptographic random module for steganographic pixel selection in the generate_pseudorandom_sequence function. Attackers who know the password can recover the Mersenne Twister state from approximately 624 outputs and predict pixel locations containing hidden data for extraction.

Details

CVSS Score: 8.7
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Confidence: 90%
Published: Aug 17, 2026
Last Modified: Aug 17, 2026

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