CVE-2026-81700: Jahlives OpenSSL Encrypt

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

openssl_encrypt versions before 1.4.9 contain a signature verification vulnerability in gpg_runner.verify_detached that accepts revoked and expired keys by only checking VALIDSIG status without inspecting REVKEYSIG, EXPKEYSIG, or gpg exit codes. Attackers holding compromised-then-revoked signing keys or expired project keys can bypass signature verification to execute malicious plugins in the host process.

Affected products

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

Published 2026-08-27. Last modified 2026-09-01.