GHSA-9fpw-c9x7-cv3j

Source

https://github.com/advisories/GHSA-9fpw-c9x7-cv3j

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/08/GHSA-9fpw-c9x7-cv3j/GHSA-9fpw-c9x7-cv3j.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-9fpw-c9x7-cv3j

Aliases

Published

2024-08-01T15:32:23Z

Modified

2025-07-09T16:41:20Z

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
5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N CVSS Calculator

Summary

Mattermost allows remote actor to set arbitrary RemoteId values for synced users

Details

Mattermost versions 9.9.x <= 9.9.0 and 9.5.x <= 9.5.6 fail to validate the source of sync messages and only allow the correct remote IDs, which allows a malicious remote to set arbitrary RemoteId values for synced users and therefore claim that a user was synced from another remote.

Database specific

{
    "cwe_ids": [
        "CWE-284",
        "CWE-346"
    ],
    "nvd_published_at": "2024-08-01T15:15:13Z",
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2024-08-02T01:19:49Z"
}

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

9.5.0

Fixed

9.5.7

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

9.9.0

Fixed

9.9.1

Affected versions

9.*

9.9.0

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

8.0.0-20240604093018-5114c3b7cdb8

github.com/mattermost/mattermost

Package

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

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.3.2-0.20240604093018-5114c3b7cdb8