---
id: CVE-2026-44648
title: >-
  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
summary: >-
  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, SillyTavern relies on
  cookie-session …
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-613
published: '2026-05-29'
updated: '2026-07-22'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-44648'
references:
  - url: >-
      https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-wmm3-h9qj-p5v6
    label: security-advisories@github.com
  - url: >-
      https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-wmm3-h9qj-p5v6
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - exploit-available
epss: 0.00394
epssPercentile: 0.33463
ingestedAt: '2026-07-22T20:06:05.291Z'
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/zzzm0919/CVE-2026-44648'
  checkedAt: '2026-09-24T07:53:03.864Z'
exploitAvailable: true
---

## Overview

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, SillyTavern relies on cookie-session for authentication, storing all session data (user handle, permissions) in a signed cookie. The endpoints POST /api/users/change-password and POST /api/users/recover-step2 only update the password hash in the database but do not expire current sessions. Because the session is stateless and stored entirely in the client cookie, there is no server-side mechanism to revoke a token once issued. This vulnerability is fixed in 1.18.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.