Is CVE-2026-74896 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-74896?

CVE-2026-74896 has a CVSS v3 severity of CRITICAL (9.8).

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CVE-2026-74896

Description

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.