GHSA-m7cf-4gh2-v4qg

Suggest an improvement
Source
https://github.com/advisories/GHSA-m7cf-4gh2-v4qg
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-m7cf-4gh2-v4qg/GHSA-m7cf-4gh2-v4qg.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-m7cf-4gh2-v4qg
Aliases
Published
2026-04-17T15:31:17Z
Modified
2026-06-25T23:11:25Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
Summary
Mattermost doesn't validate CSRF tokens on an authentication endpoint
Details

Mattermost versions 10.11.x <= 10.11.12, 11.5.x <= 11.5.0, 11.4.x <= 11.4.2, 11.3.x <= 11.3.2 fail to validate CSRF tokens on an authentication endpoint which allows an attacker to update a user's authentication method via a CSRF attack by tricking a user into visiting a malicious page. Mattermost Advisory ID: MMSA-2026-00625.

Database specific
{
    "cwe_ids":  [
        "CWE-352"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-04-29T20:35:51Z",
    "nvd_published_at":  "2026-04-15T11:16:33Z",
    "severity":  "MODERATE"
}
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
8.0.0-20250721062209-4952acea88ce
Fixed
8.0.0-20260220133927-c29cf05d40f8

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-m7cf-4gh2-v4qg/GHSA-m7cf-4gh2-v4qg.json"
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
11.5.0-rc1
Fixed
11.5.0

Affected versions

11.*
11.5.0-rc1

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-m7cf-4gh2-v4qg/GHSA-m7cf-4gh2-v4qg.json"
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
11.4.0-rc1
Fixed
11.4.3

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-m7cf-4gh2-v4qg/GHSA-m7cf-4gh2-v4qg.json"
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
11.3.0-rc1
Fixed
11.3.3

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-m7cf-4gh2-v4qg/GHSA-m7cf-4gh2-v4qg.json"