CVE-2026-9693

3.5 Faible

Publiée le 18/08/2026 à 01:16 · Modifiée le 19/08/2026 à 15:14 · Analysée par le NVD · Source : responsibledisclosure@mattermost.com

Description

Mattermost versions 10.11.x <= 10.11.20, 11.7.x <= 11.7.5 Mattermost fails to remove thread membership records when a user is removed from or leaves a team, which allows a previously removed user who is later re-invited to the team to view private channel thread root post content and metadata via the team threads API.. Mattermost Advisory ID: MMSA-2026-00682

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Produits concernés

Mattermost
Mattermost mattermost server

Scores CVSS

Version	Score	Source	Vecteur
3.1	3.5 Faible	responsibledisclosure@mattermost.com	`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N`

Faiblesses (CWE)

CWE-459

Références

https://mattermost.com/security-updates Vendor Advisory

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories