CVE-2026-119706 LMDeploy 0.9.0 through 0.18.0 Unauthenticated RCE via /update_weights Pickle Deserialization

Critical 9.3 Published 30 Oct 2026 Updated 2 Nov 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-119706?

CVE-2026-119706 is a critical vulnerability in InternLM lmdeploy, published on 30 Oct 2026.

Official description

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

Which versions are affected by CVE-2026-119706?

How do I fix CVE-2026-119706?

No fix has been published for CVE-2026-119706 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-119706 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-119706 exists.

Sources

Also known as GHSA-fq46-3gxq-v4vc.