CVE-2026-100675CWE-248

CVE-2026-100675

Medium · published September 26, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
22.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
7.1 · 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
EPSS
0.00307 · 22.3th percentile
Weakness
CWE-248 · Uncaught Exception
Published
2026-09-26T18:16Z
References (3)
https://github.com/stoatchat/stoatchat/security/advisories/GHSA-5gq6-v4cf-3qq8 · [email protected]https://www.vulncheck.com/advisories/stoatchat-before-0.15.5-denial-of-service-via-mass-mentions · [email protected]https://github.com/stoatchat/stoatchat/security/advisories/GHSA-5gq6-v4cf-3qq8 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 28 SEP 03:25Z
    EPSS moved — → 0%
    epss
  • 26 SEP 13:23Z
    stoatchat before 0.15.5 Denial of Service via mass mentions
    cvelistv5