Improper access control in Text Generation Web UI - #VU127420
Published: April 24, 2026
Vulnerability identifier: #VU127420
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-284
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 improper access control in file path validation logic when handling file or directory path requests. A remote attacker can alter the letter case of a blocked file or directory path to disclose sensitive information.
Exploitation is limited to case-insensitive file systems such as those used by Windows and macOS, and does not affect Linux.
Affected software
Text Generation Web UI
Remediation
Install security update from vendor's website.
Text Generation Web UI - update to 4.3