CVE-2026-31238: Ludwig framework is vulnerable to insecure deserialization in its model serving component
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 weightsonly=True parameter. This default behavior allows the deserialization of arbitrary Python objects via the pickle module.
Published May 12, 2026 · Updated May 27, 2026
Affected packages
ludwig
- Ecosystem
- PyPI
- Affected
- <= 0.10.4
- Fixed in
- No patched version yet
- Check
pip show ludwig
Advisory details
From the GitHub Advisory Database (CC BY 4.0).
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.
References
How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology