Server-side Request Forgery (SSRF) Affecting coturn/coturn package, versions [,4.13.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UNMANAGED-COTURNCOTURN-17950384
- published11 Jul 2026
- disclosed10 Jul 2026
- creditUnknown
Introduced: 10 Jul 2026
CVE-2026-53450 (opens in a new tab)How to fix?
Upgrade coturn/coturn to version 4.13.0 or higher.
Overview
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the ioa_addr_is_loopback function. An attacker can access services bound exclusively to localhost by specifying an IPv4-mapped IPv6 address (::ffff:127.0.0.1) in the TURN XOR-PEER-ADDRESS attribute, thereby bypassing default loopback peer protection.