GHSA-6q7m-p8cc-998r

Source

https://github.com/advisories/GHSA-6q7m-p8cc-998r

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-6q7m-p8cc-998r/GHSA-6q7m-p8cc-998r.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-6q7m-p8cc-998r

Aliases

Published

2025-10-16T09:30:24Z

Modified

2025-11-05T19:57:21.097144Z

Severity

8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator

Summary

Mattermost has a Missing Authorization vulnerability

Details

Mattermost versions 10.11.x <= 10.11.1, 10.10.x <= 10.10.2, 10.5.x <= 10.5.10 fail to verify a user has permission to join a Mattermost team using the original invite token which allows any attacked to join any team on a Mattermost server regardless of restrictions via manipulating the OAuth state.

Database specific

{
    "github_reviewed": true,
    "github_reviewed_at": "2025-10-16T21:10:20Z",
    "nvd_published_at": "2025-10-16T09:15:34Z",
    "severity": "HIGH",
    "cwe_ids": [
        "CWE-862"
    ]
}

References

Affected packages

Go

github.com/mattermost/mattermost/server/v8

Package

Name: github.com/mattermost/mattermost/server/v8; View open source insights on deps.dev
Purl: pkg:golang/github.com/mattermost/mattermost/server/v8

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

8.0.0-20250807174701-e14175eb6539

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

Affected ranges

Type: SEMVER
Events: Introduced

10.11.0

Fixed

10.11.2

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

Affected ranges

Type: SEMVER
Events: Introduced

10.10.0

Fixed

10.10.3

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

Affected ranges

Type: SEMVER
Events: Introduced

10.5.0

Fixed

10.5.11