CVE-2026-74896 — openssl_encrypt before 1.4.0 Sandbox Escape via Dunder Attribute Traversal
openssl_encrypt versions before 1.4.0 contain a sandbox escape vulnerability in the DangerousPatternVisitor AST analyzer that fails to detect dunder attribute traversal techniqu…
Published: 2026-08-17 · CVSS: 9.3 · CVSS 4.0
openssl_encrypt versions before 1.4.0 contain a sandbox escape vulnerability in the DangerousPatternVisitor AST analyzer that fails to detect dunder attribute traversal techniques. Attackers can use __class__, __bases__, __subclasses__(), and __globals__ chains to access restricted functions and execute arbitrary system commands from plugin code.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7