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OpenAdvisories
High · 7.9 Public exploit CVE-2026-34444 EUVD-2026-19346GHSA-69v7-xpr6-6gjmPYSEC-2026-2613

Lupa has a Sandbox escape and RCE due to incomplete attribute_filter enforcement in getattr / setattr

Published Apr 6, 2026 · Updated Jul 15, 2026 · Assigned by GitHub_M

Vendor: scoder Product: lupa Package: lupa Package: python-lupa Package: python-lupa Ecosystem: Debian Ecosystem: PyPI Ecosystem: Ubuntu

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.

Affected products

VendorProductAffectedFixed
scoder lupa <= 2.6 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 python-lupa No fix yet —
Debian 13 python-lupa No fix yet —
Debian 12 python-lupa No fix yet —

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu 26.10 python-lupa No fix yet —
Ubuntu 26.04 LTS python-lupa No fix yet —
Ubuntu 25.10 python-lupa No fix yet —
Ubuntu 24.04 LTS python-lupa No fix yet —
Ubuntu 22.04 LTS python-lupa No fix yet —
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS python-lupa No fix yet —
Ubuntu 18.04 LTS python-lupa No fix yet —

openSUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed python-lupa 2.7-1.1 openSUSE-SU-2026:10507-1

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

  • redyank/CVE-2026-34444 ★ 0 · Apr 3, 2026

    CVE-2026-34444(Sandbox escape and RCE due to incomplete attribute_filter enforcement in getattr/setattr)

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI lupa <= 2.6 — GHSA-69v7-xpr6-6gjm

Advisories 1

References