GO-2026-5245

Source
https://pkg.go.dev/vuln/GO-2026-5245
Import Source
https://vuln.go.dev/ID/GO-2026-5245.json
JSON Data
https://api.osv.dev/v1/vulns/GO-2026-5245
Aliases
Published
2026-06-25T18:43:15Z
Modified
2026-06-25T19:45:21.545233502Z
Summary
Mattermost: Authenticated DoS through failure to prevent rendering of external SVGs on link embeds in github.com/mattermost/mattermost-server
Details

Mattermost: Authenticated DoS through failure to prevent rendering of external SVGs on link embeds in github.com/mattermost/mattermost-server

Database specific
{
    "url": "https://pkg.go.dev/vuln/GO-2026-5245",
    "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
10.11.0-rc1+incompatible
Fixed
10.11.2+incompatible
Introduced
11.2.0-rc1+incompatible
Fixed
11.2.4+incompatible
Introduced
11.3.0-rc1+incompatible
Fixed
11.3.2+incompatible
Introduced
11.4.0-rc1+incompatible
Fixed
11.4.1+incompatible

Database specific

source
"https://vuln.go.dev/ID/GO-2026-5245.json"
github.com/mattermost/mattermost-server/v5

Package

Name
github.com/mattermost/mattermost-server/v5
View open source insights on deps.dev
Purl
pkg:golang/github.com/mattermost/mattermost-server/v5

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected

Database specific

source
"https://vuln.go.dev/ID/GO-2026-5245.json"
github.com/mattermost/mattermost-server/v6

Package

Name
github.com/mattermost/mattermost-server/v6
View open source insights on deps.dev
Purl
pkg:golang/github.com/mattermost/mattermost-server/v6

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected

Database specific

source
"https://vuln.go.dev/ID/GO-2026-5245.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
8.0.0-20260105080200-d27a2195068d
Fixed
8.0.0-20260217110922-b7d4a1f1f59b

Database specific

source
"https://vuln.go.dev/ID/GO-2026-5245.json"