Deserialization in Hiyouga Llama-Factory
CVE-2025-46567
LLama Factory enables fine-tuning of large language models. Prior to version 1.0.0, a critical vulnerability exists in the `llamafy_baichuan2.py` script of the LLaMA-Factory project. The script performs insecure deserialization using `torch.load()` on user-supplied `.bin` files from an input directory. An attacker can exploit this behavior by crafting a malicious `.bin` file that executes arbitrary commands during deserialization. This issue has been patched in version 1.0.0.
Vulnerability class: Insecure Deserialization
EPSS: 0.002 (16.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L.
Affected products
- Hiyouga Llama-factory — versions < 1.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-46567?
- CVE-2025-46567 is a medium-severity vulnerability in Hiyouga Llama-Factory, classified under Deserialization of Untrusted Data. CVSS score: 6.1/10. Published 2025-05-01.
- How severe is CVE-2025-46567?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2025-46567 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.