Description
openssl_encrypt versions before 1.4.0 contain an authentication bypass vulnerability in pqc.py where AES-GCM decryption failures trigger fallback to unauthenticated AES-CTR mode. Attackers can modify ciphertext in transit to bypass integrity verification and perform bit-flipping attacks without detection.
CVSS 9.8EPSS 0.24%Risk 1
View source- Published
- 2026-08-17 11:16:45
- Affected versions
- <1.4.0
- Type
- Library
- Last modified
- 2026-08-17 16:17:51
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H