CVE-2026-16046
EUVD-2026-6020717.08.2026, 15:16
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-2026-00675Enginsight
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| mattermost | mattermost_server | 10.11.0 ≤ 𝑥 < 10.11.22 |
| mattermost | mattermost_server | 11.7.0 ≤ 𝑥 < 11.7.7 |
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| mattermost | mattermost | 11.7.0 ≤ 𝑥 ≤ 11.7.6 | CNA |
| mattermost | mattermost | 10.11.0 ≤ 𝑥 ≤ 10.11.21 | CNA |
References