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.
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History
Tue, 07 Apr 2026 18:00:00 +0000
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ssvc
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Tue, 07 Apr 2026 15:15:00 +0000
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| 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. | |
| Title | text-generation-webui has a Path Traversal in load_grammar() — arbitrary file read without authentication | |
| Weaknesses | CWE-22 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-04-07T15:58:51.812Z
Reserved: 2026-04-02T20:49:44.454Z
Link: CVE-2026-35485
Updated: 2026-04-07T15:11:45.710Z
Status : Received
Published: 2026-04-07T15:17:45.677
Modified: 2026-04-07T17:16:31.243
Link: CVE-2026-35485
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OpenCVE Enrichment
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