CVE-2026-53448 Coturn: SQL Injection in HTTPS Admin Panel Delete Operations
An authenticated admin can inject SQL via admin panel delete operations to gain database control and potentially execute OS commands.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-53448?
CVE-2026-53448 is a high-severity SQL injection vulnerability in coturn, published on 10 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Weakness: CWE-89
Which versions are affected by CVE-2026-53448?
It affects 1 product.
Products include Coturn Project Coturn.
How do I fix CVE-2026-53448?
Upgrade to a fixed version.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-53448 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-53448 exists.
Other vulnerabilities in coturn
- CVE-2018-4056 SQL injection in coTURN
- CVE-2026-43994 Coturn: Stack buffer overflow in decode_oauth_token_gcm()
- CVE-2018-4058 Server-side request forgery in coTURN
- CVE-2026-40613 Coturn: Misaligned Memory Access in coturn STUN Attribute Parser (Remote DoS on ARM64)
- CVE-2026-53450 Coturn: IPv4-mapped 127.0.0.1 bypasses default loopback peer protection
Sources
Also known as DEBIAN-CVE-2026-53448, GHSA-v8hj-2xx7-xmp5, UBUNTU-CVE-2026-53448.