CVE-2026-21388

LOW

3.7

Beschreibung

Mattermost Plugins versions <=2.3.1 fail to limit the request body size on the {{/lifecycle}} webhook endpoint which allows an authenticated attacker to cause memory exhaustion and denial of service via sending an oversized JSON payload. Mattermost Advisory ID: MMSA-2026-00610

CVE Details

CVSS v3.1 Bewertung3.7

SchweregradLOW

CVSS VektorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

AngriffsvektorNETWORK

KomplexitatHIGH

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht4/9/2026

Zuletzt geandert4/13/2026

Quellenvd

Honeypot-Sichtungen0

Schwachen (CWE)

CWE-770

Referenzen

https://mattermost.com/security-updates(responsibledisclosure@mattermost.com)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.