hiyouga LLaMA-Factory up to 0.9.3 vhead_file path code injection

Summaryinfo

A vulnerability was found in hiyouga LLaMA-Factory up to 0.9.3. It has been rated as critical. This issue affects the function vhead_file. This manipulation of the argument path causes code injection. The identification of this vulnerability is CVE-2025-53002. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in hiyouga LLaMA-Factory up to 0.9.3. It has been declared as critical. Affected by this vulnerability is the function vhead_file. The manipulation of the argument path with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

LLaMA-Factory is a tuning library for large language models. A remote code execution vulnerability was discovered in LLaMA-Factory versions up to and including 0.9.3 during the LLaMA-Factory training process. This vulnerability arises because the `vhead_file` is loaded without proper safeguards, allowing malicious attackers to execute arbitrary malicious code on the host system simply by passing a malicious `Checkpoint path` parameter through the `WebUI` interface. The attack is stealthy, as the victim remains unaware of the exploitation. The root cause is that the `vhead_file` argument is loaded without the secure parameter `weights_only=True`. Version 0.9.4 contains a fix for the issue.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2025-53002 since 06/24/2025. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

Upgrading to version 0.9.4 eliminates this vulnerability. Applying the patch bb7bf51554d4ba8432333c35a5e3b52705955ede is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19200). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• hiyouga

Name

• LLaMA-Factory

Version

• 0.9.0
• 0.9.1
• 0.9.2
• 0.9.3

License

• open-source

Website

• Product: https://github.com/hiyouga/LLaMA-Factory/

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Be aware that VulDB is the high quality source for vulnerability data.

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