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CVE-2026-33625PYSEC-2026-4078GHSA-3HMM-RH5Q-GWWR

LMDeploy vulnerable to arbitrary code execution via eval() of untrusted quant_dtype in model config loading

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 0.12.3
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: total

Summary

LMDeploy is a toolkit for compressing, deploying, and serving large language models. Versions 012.1 through 0.12.2 contain a code injection vulnerability in `lmdeploy/pytorch/config.py` line 620 that allows an attacker to execute arbitrary Python code by publishing a malicious HuggingFace model with a crafted `quantization_config.quant_dtype` value. When a user loads the model with lmdeploy, the `quant_dtype` is passed to `eval(f'torch.{quant_dtype}')` without any validation. Version 0.12.3 contains a patch.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • InternLM lmdeploy

    From 0.12.1 · fixed in 0.12.3

  • lmdeployPyPI

    From 0.12.1 · fixed in 0.12.3

References 2

GitHub · InternLM/lmdeploy