CVE-2026-74901: critical vulnerability in jahlives openssl_encrypt
openssl_encrypt before 1.4.0 Authentication Bypass via AES-CTR Fallback
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.3epss 0.4%
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
jahlives · openssl_encryptRelated CVEs — jahlives openssl_encrypt
In the same product, most dangerous first.
CVE-2026-74899CRITICALopenssl_encrypt before 1.4.0 Sandbox Escape via Type HierarchyEPSS 0.8%CVE-2026-74878CRITICALopenssl_encrypt before 1.4.0 TOTP Rate Limiter BypassEPSS 0.7%CVE-2026-81690HIGHverify-usb before 1.4.9 Symlink Directory Traversal Code ExecutionEPSS 0.7%CVE-2026-74886CRITICALopenssl_encrypt before 1.4.0 Plugin Import Guard BypassEPSS 0.7%CVE-2026-74895CRITICALopenssl_encrypt before 1.4.0 Plugin Sandbox Bypass via Process IsolationEPSS 0.7%CVE-2026-74872CRITICALopenssl_encrypt before 1.4.0 Arbitrary Code Execution via WhirlpoolEPSS 0.7%