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A remote code execution (RCE) vulnerability exists in the ms-swift project version 3.3.0 due to unsafe deserialization in tests/run.py using yaml.load() from the PyYAML library (versions = 5.3.1). If an attacker can control the content of the YAML configuration file passed to the --run_config parameter, arbitrary code can be executed during deserialization. This can lead to full system compromise. The vulnerability is triggered when a malicious YAML file is loaded, allowing the execution of arbitrary Python commands such as os.system(). It is recommended to upgrade PyYAML to version 5.4 or higher, and to use yaml.safe_load() to mitigate the issue.
Reserved 2025-06-16 | Published 2025-08-01 | Updated 2025-08-01 | Assigner mitregithub.com/modelscope/ms-swift
github.com/modelscope/ms-swift/blob/main/tests/run.py
github.com/advisories/GHSA-6757-jp84-gxfx
github.com/Anchor0221/CVE-2025-50460
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