Vulnerability DatabaseCVE-2026-34444
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CVE-2026-34444
Published:April 06, 2026
Updated:April 20, 2026
Lupa integrates the runtimes of Lua or LuaJIT2 into CPython. In 2.6 and earlier, attribute_filter is not consistently applied when attributes are accessed through built-in functions like getattr and setattr. This allows an attacker to bypass the intended restrictions and eventually achieve arbitrary code execution.
Related Resources (3)
https://nvd.nist.gov/vuln/detail/CVE-2026-34444
https://github.com/scoder/lupa/security/advisories/GHSA-69v7-xpr6-6gjm
https://github.com/scoder/lupa
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CVSS v4
Base Score:
7.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
10
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Access Control
CWE-284
Protection Mechanism Failure
CWE-693
Authorization Bypass Through User-Controlled Key
CWE-639
EPSS
Base Score:
0.09