Path Traversal in Sillytavern
CVE-2026-34524
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 chat endpoints allows an authenticated attacker to read and delete arbitrary files under their user data root (for example secrets.json and settings.json) by supplying avatar_url="..". 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 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.006 (48.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.001
Affected products
- Sillytavern — versions < 1.17.0
Weakness classification (CWE)
References
- github.com/SillyTavern/SillyTavern/security/advisories/GHSA-vprr-q85p-79mf (Exploit, Vendor Advisory)
- github.com/SillyTavern/SillyTavern/releases/tag/1.17.0 (Release Notes)
Frequently asked questions
- What is CVE-2026-34524?
- CVE-2026-34524 is a high-severity vulnerability in Sillytavern, classified under Path Traversal. CVSS score: 8.3/10. Published 2026-04-02.
- How severe is CVE-2026-34524?
- High severity. CVSS v3 base score is 8.3 out of 10.