CVE-2026-6346

8.7 Élevée

Publiée le 18/05/2026 à 11:16 · Modifiée le 14/10/2026 à 22:10 · Analysée par le NVD · Source : responsibledisclosure@mattermost.com

Description

Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to sanitize sensitive configuration fields before including them in support packet generation, which allows a Mattermost System Admin or any party with access to a support packet to obtain sensitive credentials in plaintext via downloading a support packet from the System Console.. Mattermost Advisory ID: MMSA-2026-00607

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Produits concernés

Mattermost
Mattermost mattermost server

Scores CVSS

Version	Score	Source	Vecteur
3.1	8.7 Élevée	responsibledisclosure@mattermost.com	`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N`

Faiblesses (CWE)

CWE-200

Références

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

Ailleurs

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