Vulnerabilities
Vulnerable Software

Vulnerability Details 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 unauthenticated AES-CTR mode. Attackers can modify ciphertext in transit to bypass integrity verification and perform bit-flipping attacks without detection.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 15.0%
CVSS Severity
CVSS v3 Score 9.8
Products affected by CVE-2026-74901


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