What’s Vulnerable › Vulnerabilities

CVE-2026-34523: SillyTavern: Path traversal allows file existence oracle

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-02 · updated 2026-07-24
• Weakness: CWE-22

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 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.

Affected products

• SillyTavern: before 1.17.0 — fixed in 1.17.0

How to fix

Upgrade to a fixed version: SillyTavern 1.17.0. Check the vendor advisory for mitigations.

References

• https://github.com/SillyTavern/SillyTavern/releases/tag/1.17.0
• https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-525j-2hrj-m8fp

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