cvedb.io
CVE-2026-31239
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2026-05-12T18:16:52.320 · Last modified 2026-06-17T10:33:29.847

Summary

The mamba language model framework thru 2.2.6 is vulnerable to insecure deserialization (CWE-502) when loading pre-trained models from HuggingFace Hub. The MambaLMHeadModel.from_pretrained() method uses torch.load() to load the pytorch_model.bin weight file without enabling the security-restrictive weights_only=True parameter. This allows the deserialization of arbitrary Python objects via the pickle module. An attacker can exploit this by publishing a malicious model repository on HuggingFace Hub. When a victim loads a model from this repository, arbitrary code is executed on the victim's system in the context of the mamba process.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.