CVE-2025-50460: MS SWIFT Remote Code Execution via unsafe PyYAML deserialization
(updated )
A Remote Code Execution (RCE) vulnerability exists in the modelscope/ms-swift project due to unsafe use of yaml.load() in combination with vulnerable versions of the PyYAML library (≤ 5.3.1). The issue resides in the tests/run.py script, where a user-supplied YAML configuration file is deserialized using yaml.load() with yaml.FullLoader.
If an attacker can control or replace the YAML configuration file provided to the --run_config argument, they may inject a malicious payload that results in arbitrary code execution.
References
- github.com/Anchor0221/CVE-2025-50460
- github.com/advisories/GHSA-6757-jp84-gxfx
- github.com/advisories/GHSA-fm6c-f59h-7mmg
- github.com/modelscope/ms-swift
- github.com/modelscope/ms-swift/blob/main/tests/run.py
- github.com/modelscope/ms-swift/commit/b3418ed9b050dc079553c275c5ed14cfb2b66cf7
- github.com/modelscope/ms-swift/pull/5174
- github.com/modelscope/ms-swift/security/advisories/GHSA-fm6c-f59h-7mmg
- nvd.nist.gov/vuln/detail/CVE-2025-50460
Code Behaviors & Features
Detect and mitigate CVE-2025-50460 with GitLab Dependency Scanning
Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →