GO-2026-4727

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Source
https://pkg.go.dev/vuln/GO-2026-4727
Import Source
https://vuln.go.dev/ID/GO-2026-4727.json
JSON Data
https://api.osv.dev/v1/vulns/GO-2026-4727
Aliases
Published
2026-03-23T18:14:47Z
Modified
2026-04-16T22:45:16.746566Z
Summary
Mattermost fails to bound memory allocation when processing PSD image files in github.com/mattermost/mattermost-server
Details

Mattermost fails to bound memory allocation when processing PSD image files 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/v5 before v5.3.2-0.20260115183946-38b413a27604.

Database specific 
{
    "url": "https://pkg.go.dev/vuln/GO-2026-4727",
    "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
10.11.11+incompatible
Introduced
11.2.0-rc1+incompatible
Fixed
11.2.3+incompatible
Introduced
11.3.0-rc1+incompatible
Fixed
11.3.1+incompatible

Database specific

source 
"https://vuln.go.dev/ID/GO-2026-4727.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

Ecosystem specific 

{
    "custom_ranges": [
        {
            "type": "ECOSYSTEM",
            "events": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "5.3.2-0.20260115183946-38b413a27604"
                }
            ]
        }
    ]
}

Database specific

source 
"https://vuln.go.dev/ID/GO-2026-4727.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-2026-4727.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
0Unknown introduced version / All previous versions are affected

Database specific

source 
"https://vuln.go.dev/ID/GO-2026-4727.json"