Ludwig Framework up to 0.10.4 Pickle torch.load deserialization

Summaryinfo

A vulnerability classified as critical has been found in Ludwig Framework up to 0.10.4. Affected by this issue is the function torch.load of the component Pickle Module. Performing a manipulation results in deserialization. This vulnerability was named CVE-2026-31238. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, was found in Ludwig Framework up to 0.10.4. This affects the function torch.load of the component Pickle Module. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

This vulnerability is uniquely identified as CVE-2026-31238 since 03/09/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/12/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• Ludwig Framework

Version

• 0.10.0
• 0.10.1
• 0.10.2
• 0.10.3
• 0.10.4

CPE 2.3info

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CPE 2.2info

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