Server-Side Request Forgery in SillyTavern UI from SillyTavern
CVE-2026-26286

7.1HIGH

Key Information:

Vendor

Sillytavern

Status
Sillytavern
Vendor
CVE Published:
19 February 2026

What is CVE-2026-26286?

SillyTavern, an interface for interacting with various generation models, is susceptible to a Server-Side Request Forgery (SSRF) vulnerability. This issue allows authenticated users to craft malicious requests to the server's asset download endpoint, leading to unauthorized access to internal services and private network resources. The vulnerability can be exploited to obtain sensitive information from cloud metadata and internal services. It was addressed in version 1.16.0 through the implementation of a whitelist domain check for asset download requests, which can be configured in the whitelistImportDomains array within the config.yaml file.

Affected Version(s)

SillyTavern < 1.16.0

References

https://github.com/SillyTavern/SillyTavern/security/advis...
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CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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