Vulnerability DatabaseCVE-2026-74874
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CVE-2026-74874
Published:August 17, 2026
Updated:September 01, 2026
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.
Affected Packages
openssl-encrypt (PYTHON):
Affected version(s) >=0.2.2 <1.4.0
Fix Suggestion:
Update to version 1.4.0
Related Resources (6)
https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-vfgx-5q85-58q3
https://github.com/jahlives/openssl_encrypt/commit/09e96e090417d34d2f533f6810d3cd4f77810101
https://nvd.nist.gov/vuln/detail/CVE-2026-74874
https://github.com/jahlives/openssl_encrypt
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74874.json
https://www.vulncheck.com/advisories/openssl-encrypt-before-weak-prng-steganography-pixel-selection
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
UNREPORTED
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
CWE-338
Use of Insufficiently Random Values
CWE-330
EPSS
Base Score:
0.26