CVE-2026-100675

stoatchat before 0.15.5 Denial of Service via mass mentions

MEDIUM
6.5
CVSS Score
Published: September 26, 2026 at 01:23 PM UTC
Updated: September 28, 2026 at 06:17 PM UTC
1 product affected across 1 vendorStoatchat

Using stoatchat by stoatchat?

Get instant alerts when new vulnerabilities affect stoatchat - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.15.5
Vendor states this is fixed in 0.15.5 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-248

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card