CVE-2026-100675

Description

stoatchat versions before 0.15.5 contain a denial of service vulnerability in the acknowledgement worker that processes mass mention messages. Authenticated users can send five crafted role-mention messages to terminate all acknowledgement workers, disabling push notifications and mention badges deployment-wide until the API process restarts.

CVSS Vector

References

• https://github.com/stoatchat/stoatchat/security/advisories/GHSA-5gq6-v4cf-3qq8
• https://www.vulncheck.com/advisories/stoatchat-before-0.15.5-denial-of-service-via-mass-mentions