CVE-2026-74899

opensslencrypt 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 comman...

PYSEC-2026-3727

opensslencrypt 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 comman...

CVE-2026-74899 openssl_encrypt before 1.4.0 Sandbox Escape via Type Hierarchy

opensslencrypt 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 comman...

CVE-2026-74899

openssl_encrypt (versions before 1.4.0) has a sandbox escape in its IsolatedPluginExecutor component. Restricted exec() builtins expose Python type objects, allowing attackers to traverse the class hierarchy via __class__.__mro__.__subclasses__() to reach system functions and run arbitrary OS com...

EUVD-2026-60116

opensslencrypt 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 comman...

PT-2026-76633

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...