Incorrect Type Conversion or Cast Affecting coturn/coturn package, versions [,4.10.0)
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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Test your applications- Snyk IDSNYK-UNMANAGED-COTURNCOTURN-16353975
- published3 May 2026
- disclosed22 Apr 2026
- creditrsc-dev
Introduced: 22 Apr 2026
NewCVE-2026-40613 (opens in a new tab)How to fix?
Upgrade coturn/coturn to version 4.10.0 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Type Conversion or Cast in the STUN/TURN attribute parsing process. An attacker can cause the server process to crash by sending a crafted UDP packet with odd-aligned attribute boundaries, resulting in misaligned memory reads and a SIGBUS signal on ARM64 architectures. This is only exploitable if the deployment is running on ARM64 (AArch64) systems with strict alignment enforcement.