critical10.0
CVE-2026-34444
Lupa has a Sandbox escape and RCE due to incomplete attribute_filter enforcement in getattr / setattr
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | lupa | <= 2.6 | none recorded |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Scoder | Lupa | through 2.6 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/scoder/lupa/security/advisories/GHSA-69v7-xpr6-6gjm
- https://access.redhat.com/errata/RHSA-2026:22993
- https://access.redhat.com/security/cve/CVE-2026-34444
- https://bugzilla.redhat.com/show_bug.cgi?id=2455413
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34444.json
- https://github.com/advisories/GHSA-69v7-xpr6-6gjm
- https://nvd.nist.gov/vuln/detail/CVE-2026-34444