---
title: "CVE-2025-59159: SillyTavern Web Interface Vulnerable DNS Rebinding"
url: https://erroneo.us/security/cve/CVE-2025-59159/
description: "CVE-2025-59159 (sillytavern (npm)): SillyTavern is a locally installed user interface that allows users to interact with text generation large language…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-10-06
date_modified: 2025-10-06
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-59159"
kev: false
cvss: 9.7
epss: 0.0025
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-59159: SillyTavern Web Interface Vulnerable DNS Rebinding

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.2% , percentile 15: FIRST’s model estimates a 0.2% chance of exploitation activity in the next 30 days, higher than 15% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Needs a user to click or open something. Phishing makes that realistic, but it is not wormable.
- Only applies if your dependency tree includes sillytavern (npm) < 1.13.4, fixed in 1.13.4 . Check your lockfile, including transitive dependencies.

## What it is

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. In versions prior to 1.13.4, the web user interface for SillyTavern is susceptible to DNS rebinding, allowing attackers to perform actions like install malicious extensions, read chats, inject arbitrary HTML for phishing attacks, etc. The vulnerability has been patched in the version 1.13.4 by introducing a server configuration setting that enables a validation of host names in inbound HTTP requests according to the provided list of allowed hosts: hostWhitelist.enabled in config.yaml file or SILLYTAVERNHOSTWHITELISTENABLED environment variable. While the setting is disabled by default to honor a wide variety of existing user configurations and maintain backwards compatibility, existing and new users are encouraged to review their server configurations and apply necessary changes to their setup, especially if hosting over the local network while not using SSL.

## Affected packages

- npm `sillytavern` < 1.13.4 → fixed: 1.13.4

## Affected products (CVE record)

- SillyTavern SillyTavern: < 1.13.4

## Severity

- GitHub_M CVSS 3.1: 9.7 `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.6 `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.25% probability of exploitation activity in the next 30 days; percentile 15.

## Sources

- [GitHub Advisory GHSA-7cxj-w27x-x78q](https://github.com/advisories/GHSA-7cxj-w27x-x78q)
- [CVE.org record CVE-2025-59159](https://www.cve.org/CVERecord?id=CVE-2025-59159)
- [NVD entry CVE-2025-59159](https://nvd.nist.gov/vuln/detail/CVE-2025-59159)
- [github.com](https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-7cxj-w27x-x78q)
- [github.com](https://github.com/SillyTavern/SillyTavern/commit/d134abd50e4a416e3b81233242583b0a23f38320)
- [docs.sillytavern.app](https://docs.sillytavern.app/administration/#security-checklist)
- [docs.sillytavern.app](https://docs.sillytavern.app/administration/config-yaml/#host-whitelisting)
- [github.com](https://github.com/SillyTavern/SillyTavern/releases/tag/1.13.4)

---
Source page: https://erroneo.us/security/cve/CVE-2025-59159/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt