CVE-2026-44650

CRITICAL

SillyTavern: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 9.1
EPSS 0.0057
EPSS Percentile 42.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-22
Status published
Products (1)
SillyTavern/SillyTavern < 1.18.0
Published May 29, 2026
Tracked Since May 30, 2026