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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.

PUBLISHED Reserved 2026-03-27 | Published 2026-04-06 | Updated 2026-04-06 | Assigner GitHub_M




HIGH: 7.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

Problem types

CWE-284: Improper Access Control

CWE-639: Authorization Bypass Through User-Controlled Key

Product status

<= 2.6
affected

References

github.com/...r/lupa/security/advisories/GHSA-69v7-xpr6-6gjm

cve.org (CVE-2026-34444)

nvd.nist.gov (CVE-2026-34444)

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