CVE-2026-81703 — openssl_encrypt before 1.4.9 Authentication Bypass via Unencrypted PQC Key
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 embed…
Published: 2026-08-27 · CVSS: 8.7 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7