CVE-2026-74887CWE-338

CVE-2026-74887

Low · published August 17, 2026

CVSS v3.1
3.7
EPSS
0%
Percentile
7.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
3.7 · LOW
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
9.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00182 · 7.9th percentile
Weakness
CWE-338 · Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Published
2026-08-17T15:16Z
Affected products (1)
ProductVersionsFixed in
jahlives/openssl_encrypt< 1.4.01.4.0
References (2)
EPSS history
Timeline
  • 17 AUG 11:04Z
    openssl_encrypt before 1.4.0 Insecure Random Import in PQC Module
    cvelistv5