Analysis and contextual insights are available on OpenCVE Cloud.
Vendor Solution
Update Mattermost to versions 11.9.0, 11.7.7, 10.11.22 or higher.
Tracking
Sign in to view the affected projects.
No advisories yet.
| Link | Providers |
|---|---|
| https://mattermost.com/security-updates |
|
Tue, 18 Aug 2026 20:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mattermost mattermost Server
|
|
| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Mattermost mattermost Server
|
Tue, 18 Aug 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 17 Aug 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mattermost
Mattermost mattermost |
|
| Vendors & Products |
Mattermost
Mattermost mattermost |
Mon, 17 Aug 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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 | |
| Title | Missing run-state validation on finished playbook runs | |
| Weaknesses | CWE-863 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: Mattermost
Published:
Updated: 2026-08-18T13:22:57.921Z
Reserved: 2026-07-17T09:43:02.018Z
Link: CVE-2026-16046
Updated: 2026-08-17T15:26:43.826Z
Status : Analyzed
Published: 2026-08-17T15:16:54.083
Modified: 2026-08-18T20:34:52.620
Link: CVE-2026-16046
No data.
OpenCVE Enrichment
Updated: 2026-08-17T15:30:06Z