PyPI/openssl-encrypt CVE-2026-74900: unknown, EPSS 0.56%
openssl_encrypt versions before 1.4.0 contain a critical vulnerability in pqc.py where KEM decapsulation failures silently fall back to simulation mode, generating a deterministic shared secret from o
Action: Upgrade openssl-encrypt to 1.4.0 or later.
pip install openssl-encrypt==1.4.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.4.0 | - |
Fixed versions
| 1.4.0 |
Sources
- osv: PYSEC-2026-3772
- https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-p3gq-pcg9-qvfv
- https://www.vulncheck.com/advisories/openssl-encrypt-before-weak-shared-secret-via-pqc-simulation-mode
CVE-2026-74900 · published · modified · JSON