CVE-2026-34523: Sillytavern

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Sillytavern Sillytavern: before 1.17.0 (fixed in 1.17.0)

Published 2026-04-02. Last modified 2026-07-24.