CVE-2026-84202
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductModelscope
PublishedSep 1, 2026
First seenSep 1, 2026
Weakness typeCWE-502Deserialization of untrusted data
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| modelscope modelscope | v ≤ 1.40.0 | — |
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