CVE-2026-81718
jahlives openssl_encrypt
Published 27 Aug 2026 · updated 23 Sept 2026 · Deferred
8.7 High · CVSS 4.0, vulncheck.com
Description
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.