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Vulnerability record · CVE-2026-44650 · published 29 May 2026

CVE-2026-44650: Path traversal vulnerability

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 1.18.0, POST /api/extensions/delete endpoint accepts extensionName: "." which bypasses sanitize-filename validation, causing the entire user extensions directory to be recursively deleted. No authentication is required in the default configuration. This vulnerability is fixed in 1.18.0.

9.1 CVSS 3.1 Critical EPSS 0.84% · top 44.0% CWE-22 · Path traversal Deferred
9.1CVSS 3.1 base score
0.84%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
22 Jul 2026Last modified by NVD

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 1.18.0, POST /api/extensions/delete endpoint accepts extensionName: "." which bypasses sanitize-filename validation, causing the entire user extensions directory to be recursively deleted. No authentication is required in the default configuration. This vulnerability is fixed in 1.18.0.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

References

LinkTags
https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-886q-f44j-h6wh
https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-886q-f44j-h6wh

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Source: NIST National Vulnerability Database (record CVE-2026-44650), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.