{"id":"UBUNTU-CVE-2026-34444","details":"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.","modified":"2026-06-30T18:17:57.109859138Z","published":"2026-04-06T16:16:00Z","upstream":["CVE-2026-34444"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-34444"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-34444"},{"type":"REPORT","url":"https://github.com/scoder/lupa/security/advisories/GHSA-69v7-xpr6-6gjm"}],"affected":[{"package":{"name":"python-lupa","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/python-lupa?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5+dfsg-1","1.6+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-lupa","binary_version":"1.6+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34444.json"}},{"package":{"name":"python-lupa","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/python-lupa?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6+dfsg-4","1.6+dfsg-4build1","1.9+dfsg-1","1.9+dfsg-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-lupa","binary_version":"1.9+dfsg-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34444.json"}},{"package":{"name":"python-lupa","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/python-lupa?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9+dfsg-1build3","1.10+dfsg-1","1.10+dfsg-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-lupa","binary_version":"1.10+dfsg-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34444.json"}},{"package":{"name":"python-lupa","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/python-lupa?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.14.1+dfsg-1build1","1.14.1+dfsg-1build2","1.14.1+dfsg-1build3"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-lupa","binary_version":"1.14.1+dfsg-1build3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34444.json"}},{"package":{"name":"python-lupa","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/python-lupa?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4+dfsg-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.4+dfsg-1build1","binary_name":"python3-lupa"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34444.json"}},{"package":{"name":"python-lupa","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/python-lupa?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4+dfsg-1build1","2.4+dfsg-1build2","2.4+dfsg-1build3"],"ecosystem_specific":{"binaries":[{"binary_version":"2.4+dfsg-1build3","binary_name":"python3-lupa"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34444.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}