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OpenAdvisories
High · 7.5 CVE-2026-81718 EUVD-2026-67068GHSA-8pv3-p4p2-f6pr

openssl_encrypt before 1.4.9 Weak Cryptographic Parameters

Published Aug 27, 2026 · Updated Oct 1, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
jahlives openssl_encrypt < 1.4.9 1.4.9

References