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.
Affected products
oobabooga: textgen
References2
- github.com/oobabooga/text-generation-webui/security/advisories/… ExploitVendor Advisory
- github.com/oobabooga/text-generation-webui/security/advisories/… ExploitVendor Advisory
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - EPSS — exploit probability
- 1% percentile: 53 · as of 12 November 2026
- CWE
- CWE-22
Could this be exploited in your environment?
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