Path traversal in Text Generation Web UI - CVE-2026-35487
Published: April 24, 2026
Vulnerability identifier: #VU127425
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-35487
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to path traversal in load_prompt() when handling a crafted API request for a prompt filename. A remote attacker can send a specially crafted request with directory traversal sequences to disclose sensitive information.
The issue is limited to reading .txt files, and the file content is returned verbatim in the API response.
Affected software
Text Generation Web UI
How to mitigate CVE-2026-35487
Install security update from vendor's website.
Text Generation Web UI - update to 4.3