GHSA-pj6f-rc94-gw53

Suggest an improvement
Source
https://github.com/advisories/GHSA-pj6f-rc94-gw53
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/08/GHSA-pj6f-rc94-gw53/GHSA-pj6f-rc94-gw53.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-pj6f-rc94-gw53
Aliases
Published
2025-08-21T18:31:29Z
Modified
2025-08-29T21:00:27Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
Mattermost Fails to Sanitize File Names
Details

Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to sanitize file names which allows users with file upload permission to overwrite file attachment thumbnails via path traversal in file streaming APIs.

Database specific 
{
    "github_reviewed": true,
    "github_reviewed_at": "2025-08-22T16:58:51Z",
    "nvd_published_at": "2025-08-21T17:15:32Z",
    "severity": "MODERATE",
    "cwe_ids": [
        "CWE-22"
    ]
}
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
10.8.0
Fixed
10.8.4

Database specific

last_known_affected_version_range

"<= 10.8.3"

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
10.5.9

Database specific

last_known_affected_version_range

"<= 10.5.8"

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
10.9.0
Fixed
10.9.4

Database specific

last_known_affected_version_range

"<= 10.9.3"

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
10.10.0
Fixed
10.10.1

Affected versions

10.*

10.10.0

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
8.0.0-20250708173752-d6b35c41f0ae5