What is CVE-2026-53450?

CVE-2026-53450 is a high-severity vulnerability in Coturn, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.4/10. Published 2026-07-10.

How severe is CVE-2026-53450?

High severity. CVSS v3 base score is 7.4 out of 10.

SSRF in Coturn

CVE-2026-53450

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.0, coturn rejects loopback peers by default unless allow-loopback-peers is enabled, but the default loopback guard can be bypassed by using the IPv4-mapped…

Vulnerability class: SSRF (Server-Side Request Forgery)

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L.

Affected products

Coturn — versions < 4.13.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-53450?: CVE-2026-53450 is a high-severity vulnerability in Coturn, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.4/10. Published 2026-07-10.
How severe is CVE-2026-53450?: High severity. CVSS v3 base score is 7.4 out of 10.