Vulnerability Description
text-generation-webui is an open-source web interface for running Large Language Models. Prior to 4.3, an unauthenticated path traversal vulnerability in load_grammar() allows reading any file on the server filesystem with no extension restriction. Gradio does not server-side validate dropdown values, so an attacker can POST directory traversal payloads (e.g., ../../../etc/passwd) via the API and receive the full file contents in the response. This vulnerability is fixed in 4.3.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Oobabooga | Textgen | < 4.3 |
Related Weaknesses (CWE)
References
- https://github.com/oobabooga/text-generation-webui/security/advisories/GHSA-hqg5ExploitVendor Advisory
- https://github.com/oobabooga/text-generation-webui/security/advisories/GHSA-hqg5ExploitVendor Advisory
FAQ
What is CVE-2026-35485?
CVE-2026-35485 is a vulnerability with a CVSS score of 7.5 (HIGH). text-generation-webui is an open-source web interface for running Large Language Models. Prior to 4.3, an unauthenticated path traversal vulnerability in load_grammar() allows reading any file on the ...
How severe is CVE-2026-35485?
CVE-2026-35485 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-35485?
Check the references section above for vendor advisories and patch information. Affected products include: Oobabooga Textgen.