CVE-2026-74887

Summary

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.

Affected Software

Weaknesses

• CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

References

• https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-cx72-m6xj-3vf6
• https://www.vulncheck.com/advisories/openssl-encrypt-before-insecure-random-import-in-pqc-module

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