Path Traversal in Oobabooga Textgen
CVE-2026-35485
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (57.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.009 · change: +0.002
Affected products
- Oobabooga Textgen
- Oobabooga Text-Generation-Webui — versions < 4.3
Weakness classification (CWE)
References
- github.com/oobabooga/text-generation-webui/security/advisories/GHSA-hqg5-487v-5… (Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-35485?
- CVE-2026-35485 is a high-severity vulnerability in Oobabooga Textgen, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-04-07.
- How severe is CVE-2026-35485?
- High severity. CVSS v3 base score is 7.5 out of 10.