Vulnerability DatabaseCVE-2026-74896
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CVE-2026-74896
Published:August 17, 2026
Updated:September 01, 2026
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.
Affected Packages
openssl-encrypt (PYTHON):
Affected version(s) >=0.2.2 <1.4.0
Fix Suggestion:
Update to version 1.4.0
Additional Notes
The description of this vulnerability differs from MITRE.
Related Resources (4)
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74896.json
https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-w7gr-9g4g-33mx
https://nvd.nist.gov/vuln/detail/CVE-2026-74896
https://www.vulncheck.com/advisories/openssl-encrypt-before-sandbox-escape-via-dunder-attribute-traversal
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CVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Protection Mechanism Failure
CWE-693
EPSS
Base Score:
0.34