CVE-2026-81718 — openssl_encrypt before 1.4.9 Weak Cryptographic Parameters
openssl_encrypt versions before 1.4.9 use under-parameterized PBKDF2-HMAC-SHA256 with only 100,000 iterations to protect PQC keyfile private keys and 10,000 iterations for dual-…
Published: 2026-08-27 · CVSS: 8.7 · CVSS 4.0
openssl_encrypt versions before 1.4.9 use under-parameterized PBKDF2-HMAC-SHA256 with only 100,000 iterations to protect PQC keyfile private keys and 10,000 iterations for dual-encryption file-password verification. Attackers who obtain keyfiles or encrypted files can brute-force wrapping passwords offline using GPU or ASIC acceleration.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7