VULNERABILITY INTELLIGENCE

CVE-2026-74896

CVSS score9.8 CRITICAL
EPSS probability0.56%
CISA KEVNot currently listed
Published2026-08-17
Last modified2026-09-01
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • disclosure@vulncheck.com: CWE-693

Primary references