HIGH 8.7 NVD
CVE-2026-81703
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
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.
References
- https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-qqfq-g2cv-j7v3
- https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-authentication-bypass-vi
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-08-27 via NVD.
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