CVE-2026-35485: Oobabooga Textgen

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

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.

Affected products

• Oobabooga Textgen: before 4.3 (fixed in 4.3)

Published 2026-04-07. Last modified 2026-06-17.