CVE-2026-113380

critical

Description

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.

References

https://github.com/signalapp/ringrtc/compare/v2.71.0...v2.72.0

https://github.com/signalapp/ringrtc/commit/4b1b6fa53c9f30c87c8ea78e44675d4a13e1e4d3

https://github.com/Imahian/Notes/tree/main/docs/CVEs/CVE-2026-113380

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-104796

Details

Source: Mitre, NVD

Published: 2026-10-20

Updated: 2026-10-20

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.3

Vector: 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