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.
Published: 2026-09-26
Score: 7.1 High
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 28 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 26 Sep 2026 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Stoatchat
Stoatchat stoatchat
Vendors & Products Stoatchat
Stoatchat stoatchat

Sat, 26 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
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.
Title stoatchat before 0.15.5 Denial of Service via mass mentions
Weaknesses CWE-248
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Stoatchat Stoatchat
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-28T18:07:41.284Z

Reserved: 2026-09-26T02:34:55.635Z

Link: CVE-2026-100675

cve-icon Vulnrichment

Updated: 2026-09-28T18:06:10.975Z

cve-icon NVD

Status : Deferred

Published: 2026-09-26T14:16:51.440

Modified: 2026-09-28T18:17:14.860

Link: CVE-2026-100675

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-26T17:00:14Z

Weaknesses