---
id: CVE-2026-113380
title: >-
  In the RingRTC library before 2.72.0 for Signal, a peer that saturates a
  call's FSM queue can interfere with the ability of a local hangup to tear the
  call (with its audio and perhaps also video track) down.
summary: >-
  In the RingRTC library before 2.72.0 for Signal, a peer that saturates a
  call's FSM queue can interfere with the ability of a local hangup to tear the
  call (with its audio and perhaps also video track) down.
severity: critical
cvss: 9.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:N/SA:N/S:P'
cvssSource: cna
cwe:
  - CWE-754
vendor: Signal
product: RingRTC
affected:
  - RingRTC < 2.72.0
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T04:25:10.127Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-113380'
references:
  - url: >-
      https://github.com/signalapp/ringrtc/commit/4b1b6fa53c9f30c87c8ea78e44675d4a13e1e4d3
  - url: 'https://github.com/signalapp/ringrtc/compare/v2.71.0...v2.72.0'
tags:
  - cve.org
ingestedAt: '2026-10-20T04:52:44.233Z'
---

## Overview

In the RingRTC library before 2.72.0 for Signal, a peer that saturates a call's FSM queue can interfere with the ability of a local hangup to tear the call (with its audio and perhaps also video track) down.

## Affected

- `RingRTC < 2.72.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.