{"id":"PYSEC-2026-405","summary":"Ludwig framework is vulnerable to insecure deserialization in its model serving component","details":"The Ludwig framework thru 0.10.4 is vulnerable to insecure deserialization (CWE-502) in its model serving component. When starting a model server with the ludwig serve command, the framework loads model weight files using torch.load() without enabling the security-restrictive weights_only=True parameter. This default behavior allows the deserialization of arbitrary Python objects via the pickle module. An attacker can exploit this by providing a maliciously crafted PyTorch model file, leading to arbitrary code execution on the system hosting the Ludwig model server.","aliases":["CVE-2026-31238","GHSA-xp5q-5q7g-q26r"],"modified":"2026-07-01T20:22:56.823984Z","published":"2026-06-29T11:50:48.925693Z","references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31238"},{"type":"PACKAGE","url":"https://github.com/ludwig-ai/ludwig"},{"type":"WEB","url":"https://www.notion.so/CVE-2026-31238-35d1e1393188819ea77ee98ca85a2878"},{"type":"PACKAGE","url":"https://pypi.org/project/ludwig"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-xp5q-5q7g-q26r"}],"affected":[{"package":{"name":"ludwig","ecosystem":"PyPI","purl":"pkg:pypi/ludwig"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.10.4"}]}],"versions":["0.1.0","0.1.1","0.1.2","0.10.0","0.10.1","0.10.2","0.10.3","0.10.4","0.2","0.2.1","0.2.2","0.2.2.2","0.2.2.3","0.2.2.4","0.2.2.5","0.2.2.6","0.2.2.7","0.2.2.8","0.3","0.3.1","0.3.2","0.3.3","0.4","0.4.1","0.4rc1","0.5","0.5.1","0.5.2","0.5.3","0.5.4","0.5.5","0.5rc1","0.5rc2","0.6","0.6.1","0.6.2","0.6.3","0.6.4","0.7","0.7.1","0.7.2","0.7.3","0.7.4","0.7.5","0.8","0.8.1","0.8.1.post1","0.8.2","0.8.3","0.8.4","0.8.5","0.8.6","0.9","0.9.1","0.9.2","0.9.3"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/ludwig/PYSEC-2026-405.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}