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CVE-2026-6340

MEDIUM · CVSS 4.3 EPSS %0.24

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-05-18T08:16:14.450 · Çekilme zamanı: 2026-06-17T06:00:33.754687+00:00

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CVE
CVE-2026-6340
Severity
MEDIUM
CVSS
4.3
EPSS
%0.24

Orijinal NVD Açıklaması

Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to validate 7zip archive structure before processing which allows an authenticated attacker to cause server memory exhaustion and denial of service via uploading a specially crafted 7zip file with excessive folder declarations.. Mattermost Advisory ID: MMSA-2026-00573