CVE-2026-6541
Medium · 4.3CVSS
4.3
EPSS
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Published
Jul 13, 2026
CISA due date
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The record
Mattermost versions 11.7.x <= 11.7.1, 11.6.x <= 11.6.4, 10.11.x <= 10.11.19 fail to restrict metric configuration changes to the playbook being saved, which allows an authenticated user with team access to alter another user’s playbook metric settings via a crafted import or update request with a foreign metric ID. Mattermost Advisory ID: MMSA-2026-00653
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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