Beveiligingsadvies

CVE-2026-6340

CVE-kwetsbaarheidsdetails - eXtreme Datacenter Security Operations

Gepubliceerd 2026-05-18 07:08:56

Laatst bijgewerkt 2026-05-18 12:43:56

Toegewezen door Mattermost

CVSS-score 4.3

Status PUBLISHED

Beschrijving

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

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