CVE-2026-26286
Severity CVSS v4.0:
HIGH
Type:
CWE-918
Server-Side Request Forgery (SSRF)
Publication date:
19/02/2026
Last modified:
20/02/2026
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. In versions prior to 1.16.0, a Server-Side Request Forgery (SSRF) vulnerability in the asset download endpoint allows authenticated users to make arbitrary HTTP requests from the server and read the full response body, enabling access to internal services, cloud metadata, and private network resources. The vulnerability has been patched in the version 1.16.0 by introducing a whitelist domain check for asset download requests. It can be reviewed and customized by editing the `whitelistImportDomains` array in the `config.yaml` file.
Impact
Base Score 4.0
7.10
Severity 4.0
HIGH
Base Score 3.x
8.50
Severity 3.x
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:sillytavern:sillytavern:*:*:*:*:*:node.js:*:* | 1.16.0 (excluding) |
To consult the complete list of CPE names with products and versions, see this page