4.3

CVE-2026-14259

EPSS 0.15%
Veröffentlicht 14.09.2026 10:26:41
Zuletzt bearbeitet 07.10.2026 16:08:13
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Board archive import bypasses team board creation permissions

Mattermost versions 11.9.x <= 11.9.0, 11.8.x <= 11.8.4, 11.7.x <= 11.7.7, 10.11.x <= 10.11.22 fail to enforce board creation permissions when importing archive files which allows an authenticated non-guest team member to create Open or Private boards despite administrator restrictions via importing a crafted .boardarchive file. Mattermost Advisory ID: MMSA-2026-00712

Betroffene Produkte Warnungen 0 Metriken 2 CWE 1 Referenzen 4

NVD 4 VulnDex Vulnerability Enrichment 1

Daten sind bereitgestellt durch National Vulnerability Database (NVD)

Mattermost ≫ Mattermost Server Version >= 10.11.0 < 10.11.23

Mattermost ≫ Mattermost Server Version >= 11.7.0 < 11.7.8

Mattermost ≫ Mattermost Server Version >= 11.8.0 < 11.8.5

Mattermost ≫ Mattermost Server Version >= 11.9.0 < 11.9.1

VulnDex Vulnerability Enrichment

Diese Information steht angemeldeten Benutzern zur Verfügung.

Zu dieser CVE wurde keine Warnung gefunden.

EPSS Metriken
Typ	Quelle	Score	Percentile
EPSS	FIRST.org	0.15%	0.047

CVSS Metriken
Quelle	Base Score	Exploit Score	Impact Score	Vector String
responsibledisclosure@mattermost.com	4.3	2.8	1.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CWE-862 Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

https://mattermost.com/security-updates

Vendor Advisory

https://nvd.nist.gov/vuln/detail/CVE-2026-14259

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2026-14259

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2026-14259

EUVD