Mattermost versions 11.7.x <= 11.7.6, 10.11.x <= 10.11.21 Mattermost failed to restrict OAuth deauthorization and personal access token management endpoints to direct user sessions, which allowed an OAuth app with a delegated user token to revoke the user's authorizations or tokens for other integrations via account-management endpoints.. Mattermost Advisory ID: MMSA-2026-00704
Metrics
Affected Vendors & Products
References
| Link | Providers |
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| https://mattermost.com/security-updates |
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History
Mon, 17 Aug 2026 16:30:00 +0000
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ssvc
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Mon, 17 Aug 2026 15:45:00 +0000
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Mattermost
Mattermost mattermost |
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| Vendors & Products |
Mattermost
Mattermost mattermost |
Mon, 17 Aug 2026 14:45:00 +0000
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| Description | Mattermost versions 11.7.x <= 11.7.6, 10.11.x <= 10.11.21 Mattermost failed to restrict OAuth deauthorization and personal access token management endpoints to direct user sessions, which allowed an OAuth app with a delegated user token to revoke the user's authorizations or tokens for other integrations via account-management endpoints.. Mattermost Advisory ID: MMSA-2026-00704 | |
| Title | Delegated OAuth tokens could revoke unrelated OAuth application authorizations | |
| Weaknesses | CWE-863 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Mattermost
Published:
Updated: 2026-08-17T15:26:05.729Z
Reserved: 2026-07-17T09:41:38.446Z
Link: CVE-2026-16045
Updated: 2026-08-17T15:26:00.686Z
Status : Received
Published: 2026-08-17T15:16:53.967
Modified: 2026-08-17T16:16:50.560
Link: CVE-2026-16045
No data.
OpenCVE Enrichment
Updated: 2026-08-17T15:30:06Z