CVE-2026-34524 Details
Description
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.
A path traversal vulnerability has been identified in SillyTavern versions prior to 1.17.0. This vulnerability allows authenticated attackers to read and delete arbitrary files within their user data root, such as secrets.json and settings.json. The issue arises from the chat endpoints, where the input validation for the avatar_url parameter fails to properly sanitize traversal segments, enabling access to files outside the intended directory.
Users are advised to update SillyTavern to version 1.17.0 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 2, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-vprr-q85p-79mf | CISA-ADP | ExploitVendor Advisory |
| https://github.com/SillyTavern/SillyTavern/releases/tag/1.17.0 | [email protected] | Release Notes |
| https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-vprr-q85p-79mf | [email protected] | ExploitVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| sillytavern sillytavern | < 1.17.0 |
CPE
Remediation
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Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 13, 2026 | Initial Analysis | [email protected] |
| Apr 3, 2026 | CVE Modified | CISA-ADP |
| Apr 2, 2026 | New CVE Received | [email protected] |