Medium severity4.3NVD Advisory· Published Aug 17, 2026
CVE-2026-16046
CVE-2026-16046
Description
Mattermost versions 11.7.x <= 11.7.6, 10.11.x <= 10.11.21 fail to enforce run-state validation on write operations for finished playbook runs which allows a run participant to modify status, checklists, retrospective content, ownership, and participants on completed runs via REST and GraphQL API requests. Mattermost Advisory ID: MMSA-2026-00675
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <=11.7.6, <=10.11.21
Patches
Vulnerability mechanics
References
1News mentions
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