CVE-2026-81719 - openssl_encrypt before 1.4.9 Remote Code Execution via Plugin

[Starburst-David]

CVE ID :CVE-2026-81719
Published : Aug. 27, 2026, 5:21 p.m. | 48 minutes ago
Description :openssl_encrypt before 1.4.9 executes untrusted third-party plugins with insufficient controls: the plugin signature policy defaulted to WARN, so an unsigned/unverifiable non-built-in plugin was compiled and executed in the host process at import time, before the runtime sandbox is installed. The only default gate was an incomplete, bypassable AST denylist. If a user is induced to load an attacker's plugin, this results in arbitrary code execution with the privileges of the user running openssl_encrypt. Fixed in 1.4.9 by defaulting the signature policy to ENFORCE for non-built-in plugins.
Severity: 9.3 | CRITICAL

More Information:
https://cvefeed.io/vuln/detail/CVE-2026-81719