Path Traversal in Sillytavern
CVE-2026-34523
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (35.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000
Affected products
- Sillytavern — versions < 1.17.0
Weakness classification (CWE)
References
- github.com/SillyTavern/SillyTavern/security/advisories/GHSA-525j-2hrj-m8fp (Exploit, Vendor Advisory)
- github.com/SillyTavern/SillyTavern/releases/tag/1.17.0 (Release Notes)
Frequently asked questions
- What is CVE-2026-34523?
- CVE-2026-34523 is a medium-severity vulnerability in Sillytavern, classified under Path Traversal. CVSS score: 5.3/10. Published 2026-04-02.
- How severe is CVE-2026-34523?
- Medium severity. CVSS v3 base score is 5.3 out of 10.