Vulnerability · Published Apr 2, 2026 · Assigned by GitHub_M

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

Medium 5.3

In plain English

A medium-severity path traversal in SillyTavern from SillyTavern. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.5%top 59.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	sillytavern	1.17.0	GHSA-525j-2hrj-m8fp

Affected products (as reported)

Vendor	Product	Versions
SillyTavern	SillyTavern	< 1.17.0

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

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