CVE-2026-81687: Jahlives OpenSSL Encrypt

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

openssl_encrypt versions before 1.4.9 fail to enforce a time ceiling on key derivation function iteration counts specified in file metadata. Attackers can craft files with extremely high KDF iteration counts to consume CPU resources for unbounded periods before password verification occurs.

Affected products

• Jahlives OpenSSL Encrypt: before 1.4.9 (fixed in 1.4.9)

Published 2026-08-27. Last modified 2026-09-23.