GHSA-7h34-9chr-58qh

Source

https://github.com/advisories/GHSA-7h34-9chr-58qh

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/07/GHSA-7h34-9chr-58qh/GHSA-7h34-9chr-58qh.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-7h34-9chr-58qh

Aliases

CVE-2025-6226
GO-2025-3819

Published

2025-07-18T09:30:32Z

Modified

2025-07-29T19:44:38.010990Z

Severity

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

Summary

Mattermost Missing Authentication for Critical Function

Details

Mattermost versions 10.5.x <= 10.5.6, 10.8.x <= 10.8.1, 10.7.x <= 10.7.3, 9.11.x <= 9.11.16 fail to verify authorization when retrieving cached posts by PendingPostID which allows an authenticated user to read posts in private channels they don't have access to via guessing the PendingPostID of recently created posts.

Database specific

{
    "nvd_published_at": "2025-07-18T09:15:26Z",
    "github_reviewed": true,
    "github_reviewed_at": "2025-07-21T18:32:06Z",
    "severity": "MODERATE",
    "cwe_ids": [
        "CWE-306"
    ]
}

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

Affected ranges

Type: SEMVER
Events: Introduced

10.5.0

Fixed

10.5.7

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

Affected ranges

Type: SEMVER
Events: Introduced

10.8.0

Fixed

10.8.2

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

Affected ranges

Type: SEMVER
Events: Introduced

10.7.0

Fixed

10.7.4

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

Affected ranges

Type: SEMVER
Events: Introduced

9.11.0

Fixed

9.11.17

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

8.0.0-20250520130510-fa40a8c5d47f