Unrated severityNVD Advisory· Published Jun 22, 2026· Updated Jun 22, 2026
User Manager can demote bot accounts to guest without bot-management permission
CVE-2026-8823
Description
Mattermost versions 11.7.x <= 11.7.0, 10.11.x <= 10.11.17 fail to validate bot targets when demoting users to guests which allows a lower-privileged administrator to degrade arbitrary bot accounts via the standard demote-user API.. Mattermost Advisory ID: MMSA-2026-00669
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <=11.7.0 or <=10.11.17
Patches
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- mattermost.com/security-updatesmitrevendor-advisory
News mentions
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