CVE-2026-100675

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 v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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
https://github.com/stoatchat/stoatchat/security/advisories/GHSA-5gq6-v4cf-3qq8

Configurations

No configuration.

History

28 Sep 2026, 18:17

Type	Values Removed	Values Added
References	~~() https://github.com/stoatchat/stoatchat/security/advisories/GHSA-5gq6-v4cf-3qq8 -~~	() https://github.com/stoatchat/stoatchat/security/advisories/GHSA-5gq6-v4cf-3qq8 -

26 Sep 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-26 14:16

Updated : 2026-09-28 18:17

NVD link : CVE-2026-100675

Mitre link : CVE-2026-100675

CVE.ORG link : CVE-2026-100675

JSON object : View

Products Affected

No product.

CWE

CWE-248

Uncaught Exception

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