CVE-2026-53448: Coturn is a free open source implementation of TURN and STUN Server

Q: How do I fix CVE-2026-53448?

coturn: upgrade to 4.12.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-53448 being exploited?

CVE-2026-53448 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-53448 affect?

CVE-2026-53448 affects coturn. Severity is high (CVSS 7.2). 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_

Q: How urgent is CVE-2026-53448?

Priority 43/100. High severity; Public exploit reference

This month

HIGH 7.2UPGRADE

CVE-2026-53448 is a high-severity flaw (CVSS 7.2) affecting coturn. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-89
Published	2026-07-10
Last modified	2026-07-16

Publisher (CNA): GitHub, Inc. · Vendor: coturn project

Last updated 2026-07-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-10 19:17 UTCPublished CVE record published
2026-07-16 13:35 UTCUpdated Record last modified

coturn project coturn UPGRADE

Affected: < 4.12.0

Fixed in: 4.12.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy coturn || rpm -q coturn || coturn --version

2. UPGRADE to 4.12.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade coturn

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade coturn

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-53448?

coturn: upgrade to 4.12.0. Exact commands for each OS are on this page.

Is CVE-2026-53448 being exploited?

CVE-2026-53448 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-53448 affect?

CVE-2026-53448 affects coturn. Severity is high (CVSS 7.2). 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_

How urgent is CVE-2026-53448?

Priority 43/100. High severity; Public exploit reference

Related CVEs

CVE-2026-53450 HIGH 7.4 UPGRADE Coturn is a free open source implementation of TURN and STUN Server
CVE-2026-53449 MEDIUM 6.0 UPGRADE Coturn is a free open source implementation of TURN and STUN Server

References

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