CVE-2026-74899 — openssl_encrypt before 1.4.0 Sandbox Escape via Type Hierarchy
openssl_encrypt versions before 1.4.0 contain a sandbox escape vulnerability in IsolatedPluginExecutor that exposes Python type objects in restricted exec() builtins. Attackers …
Published: 2026-08-17 · CVSS: 9.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7