CVE-2026-34523 MEDIUM

CVE-2026-34523: SillyTavern: Path traversal allows file existence oracle

Vendor Sillytavern
Product SillyTavern
Weakness CWE-22 · Path traversal
Published April 2, 2026
Last update April 3, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

SillyTavern is a locally installed user interface that allows users to interact with text generation large language models, image generation engines, and text-to-speech voice models. Prior to version 1.17.0, a path traversal vulnerability in the static file route handler allows any unauthenticated user to determine whether files exist anywhere on the server's filesystem. by sending percent-encoded "../" sequences (%2E%2E%2F) in requests to static file routes, an attacker can check for the existence of files. This issue has been patched in version 1.17.0.

Key dates

02Disclosure timeline

April 2, 2026 CVE published
April 3, 2026 Record updated