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CVE-2026-74899

CRITICAL CVSS: 9.8 Published: 2026-08-17 Modified: 2026-08-18

Description

openssl_encrypt versions before 1.4.0 contain a sandbox escape vulnerability in IsolatedPluginExecutor that exposes Python type objects in restricted exec() builtins. Attackers can traverse the Python class hierarchy via __class__.__mro__.__subclasses__() to access system functions and execute arbitrary OS commands.

Affected Platforms

Unknown

Weakness Type

CWE-95

References