CVE-2025-6773 HKUDS LightRAG File Upload document_routes.py upload_to_input_dir path traversal
Attackers can exploit a path traversal vulnerability in the file upload function to read or modify arbitrary files on the local host.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-6773?
CVE-2025-6773 is a medium-severity path traversal vulnerability in HKUDS LightRAG, published on 27 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was found in HKUDS LightRAG up to 1.3.8. It has been declared as critical. Affected by this vulnerability is the function upload_to_input_dir of the file lightrag/api/routers/document_routes.py of the component File Upload. The manipulation of the argument file.filename leads to path traversal. It is possible to launch the attack on the local host. The identifier of the patch is 60777d535b719631680bcf5d0969bdef79ca4eaf. It is recommended to apply a patch to fix this issue.
Weakness: CWE-22
Which versions are affected by CVE-2025-6773?
3 open source packages ship an affected version, including lightrag-hku.
| Package | Affected | Fixed in |
|---|---|---|
lightrag-hku PyPI | All versions | 1.3.8 |
lightrag-hku PyPI | All versions | 1.3.8 |
lightrag-hku PyPI | All versions | 1.3.8 |
How do I fix CVE-2025-6773?
Upgrade lightrag-hku to 1.3.8 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2025-6773 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6773 exists.
Sources
Also known as GHSA-v9w6-9hq9-33ch, PYSEC-2026-1539.