GHSA-mxxh-fmjq-j6x4
Suggest an improvement- Source
- https://github.com/advisories/GHSA-mxxh-fmjq-j6x4
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-mxxh-fmjq-j6x4/GHSA-mxxh-fmjq-j6x4.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/GHSA-mxxh-fmjq-j6x4
- Aliases
- Published
- 2026-04-17T15:31:17Z
- Modified
- 2026-06-25T23:11:16Z
- Severity
-
- 2.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
- Summary
- Mattermost doesn't validate whether users were correctly owned by the correct Connected Workspace
- Details
-
Mattermost versions 10.11.x <= 10.11.12 fail to validate whether users were correctly owned by the correct Connected Workspace which allows a malicious remote server connected using the Conntexted Workspaces feature to change the displayed status of local users via the Connected Workspaces API. Mattermost Advisory ID: MMSA-2026-00603.
- Database specific
{ "cwe_ids": [ "CWE-862" ], "github_reviewed": true, "github_reviewed_at": "2026-04-28T23:02:16Z", "nvd_published_at": "2026-04-15T11:16:33Z", "severity": "LOW" }- References
Affected packages
Go / github.com/mattermost/mattermost-server
Package
- Name
- github.com/mattermost/mattermost-server
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/mattermost/mattermost-server