CVE-2025-22873

Description

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.

References

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

https://groups.google.com/g/golang-announce/c/UZoIkUT367A/m/5WDxKizJAQAJ

https://go.dev/issue/73555

https://go.dev/cl/670036

https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-206863

http://www.openwall.com/lists/oss-security/2025/05/06/2

Details

Source: Mitre, NVD

Named Vulnerability: GO-2026-4403Named Vulnerability: GHSA-p3p7-9h4w-jqw2

Risk Information

CVSS v2

CVSS v3

EPSS