Uncontrolled Recursion Affecting freeswitch package, versions [,1.11.1)
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-FREESWITCH-17391824
- published21 Jun 2026
- disclosed9 Jun 2026
- creditCaffinatedSquirrel-OG
Introduced: 9 Jun 2026
CVE-2026-49847 (opens in a new tab)How to fix?
Upgrade freeswitch to version 1.11.1 or higher.
Overview
Affected versions of this package are vulnerable to Uncontrolled Recursion via the cJSON parser when processing deeply nested JSON documents. An attacker can cause the process to crash and terminate all active calls and sessions by sending a specially crafted WebSocket frame containing such a document.