CVE-2026-53448
Description
A flaw was found in Coturn, a free open-source implementation of TURN and STUN Server. The HTTPS administration panel, specifically in the delete-user, delete-secret, and delete-IP operations, does not properly sanitize HTTP query parameters. This allows an authenticated administrator to inject arbitrary SQL (Structured Query Language) commands, leading to full control over the database. This could potentially enable an attacker to achieve arbitrary code execution on the underlying operating system.
Statement
This flaw affects the community-maintained coturn TURN/STUN server as shipped in Fedora and EPEL. Red Hat does not ship coturn in any core Red Hat product. Fedora and EPEL currently ship coturn 4.14.0, which already includes the fix released in 4.12.0, so the shipped builds are not vulnerable to this SQL injection in the HTTPS admin panel.
Mitigation
No action needed — the shipped coturn build (4.14.0) already contains the upstream fix.
Understanding the Weakness (CWE)
Confidentiality,Integrity,Availability
Technical Impact: Execute Unauthorized Code or Commands
Adversaries could execute system commands, typically by changing the SQL statement to redirect output to a file that can then be executed.
Confidentiality
Technical Impact: Read Application Data
Since SQL databases generally hold sensitive data, loss of confidentiality is a frequent problem with SQL injection vulnerabilities.
Authentication
Technical Impact: Gain Privileges or Assume Identity; Bypass Protection Mechanism
If poor SQL commands are used to check user names and passwords or perform other kinds of authentication, it may be possible to connect to the product as another user with no previous knowledge of the password.
Access Control
Technical Impact: Bypass Protection Mechanism
If authorization information is held in a SQL database, it may be possible to change this information through the successful exploitation of a SQL injection vulnerability.
Integrity
Technical Impact: Modify Application Data
Just as it may be possible to read sensitive information, it is also possible to modify or even delete this information with a SQL injection attack.
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