What’s Vulnerable › Vulnerabilities

CVE-2026-113380

• Severity: critical (CVSS 9.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-20 · updated 2026-10-31
• Weakness: CWE-754

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.

Affected products

• Signal RingRTC: before 2.72.0 — fixed in 2.72.0

How to fix

Upgrade to a fixed version: Signal RingRTC 2.72.0. Check the vendor advisory for mitigations.

References

• https://github.com/signalapp/ringrtc/commit/4b1b6fa53c9f30c87c8ea78e44675d4a13e1e4d3
• https://github.com/signalapp/ringrtc/compare/v2.71.0...v2.72.0
• https://github.com/Imahian/Notes/tree/main/docs/CVEs/CVE-2026-113380
• https://piefed.world/post/1503394

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