CVE-2026-81703: Jahlives OpenSSL Encrypt

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

openssl_encrypt versions before 1.4.9 fail to validate encryption status of embedded post-quantum private keys in file metadata. Attackers can craft files with unencrypted embedded PQC keys that decrypt under any password, bypassing authentication and producing attacker-chosen plaintext with false integrity verification.

Affected products

• Jahlives OpenSSL Encrypt: before 1.4.9 (fixed in 1.4.9)

Published 2026-08-27. Last modified 2026-09-01.