CRITICAL 9.3 NVD
CVE-2026-74901
openssl_encrypt versions before 1.4.0 contain an authentication bypass vulnerability in pqc.py where AES-GCM decryption failures trigger fallback to unauthentic
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.
References
- https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-w4j7-wfgw-r52w
- https://www.vulncheck.com/advisories/openssl-encrypt-before-authentication-bypass-via-aes-
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-08-17 via NVD.
Risk Timeline
CVE Disclosed2026-08-17 · -1 days ago
Remediation Resources
vulnfeed aggregates 11766 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.