CVE-2026-119706

CVSS 9.8 (critical) · published 2026-10-30

InternLM LMDeploy 0.9.0 through 0.18.0 contains an unauthenticated remote code execution vulnerability that allows remote attackers to run OS commands by sending pickled data to the /update_weights endpoint. Attackers can submit a base64-encoded crafted pickle in serialized_named_tensors, which ForkingPickler.loads deserializes without validation, executing commands as the api_server process.

Weakness: CWE-502

Source: NVD CVE-2026-119706

References

• https://github.com/InternLM/lmdeploy
• https://github.com/InternLM/lmdeploy/blob/v0.18.0/lmdeploy/serve/openai/endpoints/management.py#L55-L60
• https://github.com/InternLM/lmdeploy/blob/v0.18.0/lmdeploy/turbomind/turbomind.py#L345
• https://github.com/InternLM/lmdeploy/issues/4698
• https://github.com/InternLM/lmdeploy/pull/4964
• https://www.vulncheck.com/advisories/lmdeploy-0.9.0-through-0.18.0-unauthenticated-rce-via-update-weights-pickle-deserialization
• https://github.com/InternLM/lmdeploy/issues/4698

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