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CVE-2026-74901 openssl_encrypt before 1.4.0 Authentication Bypass via AES-CTR Fallback

🗓️ 17 Aug 2026 11:04:59Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

openssl_encrypt before 1.4.0 falls back to unauthenticated AES-CTR on AES-GCM failures, enabling authentication bypass and bit-flipping attacks.

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19 Aug 2026 03:49Current
5.4Medium risk
Vulners AI Score5.4
CVSS 49.3
2