What is CVE-2026-34444?

CVE-2026-34444 is a critical-severity vulnerability in Scoder Lupa, classified under Improper Access Control. CVSS score: 10.0/10. Published 2026-04-06.

How severe is CVE-2026-34444?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Is CVE-2026-34444 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Scoder Lupa

CVE-2026-34444

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 bypa…

EPSS: 0.000 (15.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Scoder Lupa — versions <= 2.6

Weakness classification (CWE)

Public proof-of-concept exploits

redyank/CVE-2026-34444

References

https://github.com/scoder/lupa/security/advisories/GHSA-69v7-xpr6-6gjm (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-34444?: CVE-2026-34444 is a critical-severity vulnerability in Scoder Lupa, classified under Improper Access Control. CVSS score: 10.0/10. Published 2026-04-06.
How severe is CVE-2026-34444?: Critical severity. CVSS v3 base score is 10.0 out of 10.
Is CVE-2026-34444 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.