Is mamba-ssm affected by CVE-2026-31239?

PyPI mamba-ssm is affected in <=2.2.6.

Is CVE-2026-31239 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

critical

CVE-2026-31239

Q: Is CVE-2026-31239 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

PyPI · mamba-ssm

Summary

mamba language model framework vulnerable to insecure deserialization when loading pre-trained models from HuggingFace Hub

Severity: critical
EPSS: 0.4% (p32)
Also known as: GHSA-pq2f-x424-6fjm
Published: 2026-05-12

References

https://nvd.nist.gov/vuln/detail/CVE-2026-31239
https://github.com/state-spaces/mamba
https://www.notion.so/CVE-2026-31239-35d1e1393188810d9baedfbd8363f396

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.