GO-2026-4459

Source
https://pkg.go.dev/vuln/GO-2026-4459
Import Source
https://vuln.go.dev/ID/GO-2026-4459.json
JSON Data
https://api.osv.dev/v1/vulns/GO-2026-4459
Aliases
Published
2026-02-17T18:09:06Z
Modified
2026-02-19T20:41:02.522703Z
Summary
Mattermost Server vulnerable to XSS through channel headers in github.com/mattermost/mattermost-server
Details

Mattermost Server vulnerable to XSS through channel headers in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.9.2-0.20170714014920-312269ad0bd1.

Database specific
{
    "url": "https://pkg.go.dev/vuln/GO-2026-4459",
    "review_status": "UNREVIEWED"
}
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
3.10.0+incompatible
Fixed
3.10.2+incompatible

Ecosystem specific

{
    "custom_ranges": [
        {
            "events": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "3.9.2-0.20170714014920-312269ad0bd1"
                }
            ],
            "type": "ECOSYSTEM"
        }
    ]
}

Database specific

source
"https://vuln.go.dev/ID/GO-2026-4459.json"