CVE-2026-84202
ModelScope through 1.40.0 Unsafe YAML Deserialization in Model Config Loading
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 1, 2026
- Updated
- Sep 1, 2026
- Reserved
- Sep 1, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-502 Deserialization of Untrusted Data
Affected Products
| Product | Versions |
|---|---|
modelscopemodelscope |
|
References
- https://github.com/modelscope/modelscopeproduct
- https://github.com/modelscope/modelscope/issues/1660issue-tracking
- https://github.com/modelscope/modelscope/blob/v1.40.0/modelscope/models/audio/tts/voice.pytechnical-description
- https://github.com/modelscope/modelscope/blob/v1.40.0/modelscope/models/multi_modal/mplug/configuration_mplug.pytechnical-description
- VulnCheck Advisory: ModelScope through 1.40.0 Unsafe YAML Deserialization in Model Config Loadingthird-party-advisory
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