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.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://github.com/InternLM/lmdeploy/pull/4964 patch, issue-tracking
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 9.3 · internlmNVD modified 2026-10-30 15:39
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 6
- https://github.com/InternLM/lmdeploy/issues/4698 issue-tracking
- https://github.com/InternLM/lmdeploy product
- https://github.com/InternLM/lmdeploy/blob/v0.18.0/lmdeploy/serve/openai/endpoints/management.py#L55-L60 technical-description
- https://github.com/InternLM/lmdeploy/blob/v0.18.0/lmdeploy/turbomind/turbomind.py#L345 technical-description
- https://github.com/InternLM/lmdeploy/pull/4964 patch, issue-tracking
- https://www.vulncheck.com/advisories/lmdeploy-0.9.0-through-0.18.0-unauthenticated-rce-via-update-weights-pickle-deserialization third-party-advisory