CVE-2026-74887
openssl_encrypt before 1.4.0 Insecure Random Import in PQC Module
- State
- Published
- Severity
- 6.3 Medium
- Published
- Aug 17, 2026
- Updated
- Oct 1, 2026
- Reserved
- Aug 17, 2026
Description
openssl_encrypt before 1.4.0 imports Python's non-cryptographic 'random' module (Mersenne Twister PRNG) at line 15 of openssl_encrypt/modules/pqc.py. No direct calls to random.* were present in the code, so no cryptographic operation is currently affected; however, the import creates a hazard that future code could inadvertently use random.randint() instead of a cryptographically secure alternative (secrets/os.urandom), producing predictable values since the Mersenne Twister state can be recovered from approximately 624 outputs. Fixed by removing the import in 1.4.0.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.3 Medium | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 3.7 Low | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Affected Products
| Product | Versions |
|---|---|
openssl_encryptjahlives |
|
References
- GitHub Security Advisory (GHSA-cx72-m6xj-3vf6)vendor-advisory
- VulnCheck Advisory: openssl_encrypt before 1.4.0 Insecure Random Import in PQC Modulethird-party-advisory
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