CVE-2026-84202

Summary

ModelScope uses PyYAML's unsafe yaml.Loader to parse model configuration files, allowing arbitrary code execution through Python object construction tags. Attackers can craft malicious model repositories with poisoned configuration files that execute code when loaded by users.

Affected Software

Weaknesses

• CWE-502: Deserialization of Untrusted Data

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: total

Additional References

• https://github.com/modelscope/modelscope/issues/1660

References

• https://github.com/modelscope/modelscope
• https://github.com/modelscope/modelscope/issues/1660
• https://github.com/modelscope/modelscope/blob/v1.40.0/modelscope/models/audio/tts/voice.py
• https://github.com/modelscope/modelscope/blob/v1.40.0/modelscope/models/multi_modal/mplug/configuration_mplug.py
• https://www.vulncheck.com/advisories/modelscope-through-1.40.0-unsafe-yaml-deserialization-in-model-config-loading

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