{"id":"PYSEC-2026-3754","details":"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.","aliases":["CVE-2026-74874","GHSA-vfgx-5q85-58q3"],"modified":"2026-09-02T09:00:04.184109412Z","published":"2026-08-17T11:16:41.813Z","references":[{"type":"ADVISORY","url":"https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-vfgx-5q85-58q3"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openssl-encrypt-before-weak-prng-steganography-pixel-selection"}],"affected":[{"package":{"name":"openssl-encrypt","ecosystem":"PyPI","purl":"pkg:pypi/openssl-encrypt"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.0"}]}],"versions":["0.2.2","0.2.3","0.2.4","0.2.5","0.2.6","0.3.0","0.3.1","0.3.2","0.3.3","0.4.0","0.4.1","0.4.2","0.4.3","0.4.4","0.5.0","0.5.1","0.5.3","0.6.0rc1","0.7.0rc2","0.7.1","0.7.2","0.8.0","0.8.1","0.8.2","0.9.2","1.0.0","1.0.1","1.0.2","1.0.3","1.1.0","1.2.0","1.2.1","1.3.0","1.3.1","1.3.2","1.3.3","1.3.4","1.3.5","1.4.0b3","1.4.0b4","1.4.0b5","1.4.0b6","1.4.0b7","1.4.0b8"],"ecosystem_specific":{},"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/openssl-encrypt/PYSEC-2026-3754.yaml"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}