---
id: CVE-2026-53448
title: Coturn is a free open source implementation of TURN and STUN Server
summary: >-
  Coturn is a free open source implementation of TURN and STUN Server. Prior to
  4.12.0, the coturn HTTPS admin panel passes HTTP query parameters directly
  into SQL queries via snprintf string interpolation without sanitization. The
  is_secu…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-89
vendor: coturn_project
product: coturn
affected:
  - coturn < 4.12.0
patched:
  - coturn 4.12.0
published: '2026-07-10'
updated: '2026-07-16'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53448'
references:
  - url: >-
      https://github.com/coturn/coturn/commit/b84dbab1d1aa6e2bf0211a1cdbb250d6de2a0d09
    label: security-advisories@github.com
  - url: 'https://github.com/coturn/coturn/pull/1924'
    label: security-advisories@github.com
  - url: 'https://github.com/coturn/coturn/releases/tag/4.12.0'
    label: security-advisories@github.com
  - url: 'https://github.com/coturn/coturn/security/advisories/GHSA-v8hj-2xx7-xmp5'
    label: security-advisories@github.com
  - url: 'https://github.com/coturn/coturn/security/advisories/GHSA-v8hj-2xx7-xmp5'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00704
epssPercentile: 0.51916
ingestedAt: '2026-07-17T13:12:07.996Z'
---

## Overview

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.12.0, the coturn HTTPS admin panel passes HTTP query parameters directly into SQL queries via snprintf string interpolation without sanitization. The is_secure_string filter that protects the STUN protocol path is not applied to the admin panel's delete-user, delete-secret, and delete-IP operations, so an authenticated admin can inject arbitrary SQL through the du, ds, and dip parameters, gaining full database control and potentially OS-level access via PostgreSQL COPY TO PROGRAM. This issue is fixed in version 4.12.0.

## Affected

- `coturn < 4.12.0`

## Remediation

Upgrade past the affected range:

- `coturn 4.12.0`