CVE-2026-34444

CriticalCVSS 10.0/10Last modified Jul 15, 2026

Description

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.

Metrics

CVSS 3.1 10.0/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-284 CWE-639 CWE-914

Affected software

No affected versions have been published.

Timeline

Published: Apr 6, 2026
Last modified: Jul 15, 2026
NVD status: Modified

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