Vulnerabilities CVE-2026-7521

CVE-2026-7521

Medium

Open

TLP:CLEAR

SAML certificate deletion allows path traversal to delete arbitrary files outside the config directory

NVD CVE.org

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Description

Mattermost versions 11.8.x <= 11.8.0, 11.7.x <= 11.7.3, 11.6.x <= 11.6.5, 10.11.x <= 10.11.20 fail to verify file deletion path which allows an admin with SAML system-console write permissions to delete arbitrary files outside the config directory from the server via the remove file endpoint.. Mattermost Advisory ID: MMSA-2026-00666

Details

CVSS Score: 5.5
EPSS Score ⓘ: 0.28%

20.6th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
Confidence: 90%
Published: Jul 28, 2026
Last Modified: Jul 28, 2026

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