GO-2026-4403

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Source

https://pkg.go.dev/vuln/GO-2026-4403

Import Source

https://vuln.go.dev/ID/GO-2026-4403.json

JSON Data

https://api.osv.dev/v1/vulns/GO-2026-4403

Aliases

Published

2026-02-04T22:42:26Z

Modified

2026-02-06T09:40:56.765821Z

Summary

Improper access to parent directory of root in os

Details

It was possible to improperly access the parent directory of an os.Root by opening a filename ending in "../". For example, Root.Open("../") would open the parent directory of the Root. This escape only permits opening the parent directory itself, not ancestors of the parent or files contained within the parent.

Database specific

{
    "url": "https://pkg.go.dev/vuln/GO-2026-4403",
    "review_status": "REVIEWED"
}

References

Credits

- Dan Sebastian Thrane of SDU eScience Center

Affected packages

Go / stdlib

Package

Name: stdlib; View open source insights on deps.dev
Purl: pkg:golang/stdlib

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.23.9

Introduced

1.24.0-0

Fixed

1.24.3

Ecosystem specific

{
    "imports": [
        {
            "symbols": [
                "checkPathEscapesInternal",
                "doInRoot",
                "splitPathInRoot"
            ],
            "path": "os"
        }
    ]
}

Database specific

source

"https://vuln.go.dev/ID/GO-2026-4403.json"