CVEvulnerability
CVE-2026-56857
9.8 CRITICAL
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-10-08
- Last modified
- 2026-10-09
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-1386
Description
On Windows, when the target of Root.Mkdir or Root.MkdirAll is a junction pointing to an empty location, the operation can create a directory at the junction target even when that target is located outside the root. This only applies to operations where the last path component is a junction (path/to/junction, but not path/junction/target).
Related
Weakness · CWE (1)
- CWE-1386 Insecure Operation on Windows Junction / Mount Point weakness
References
- https://go.dev/cl/847305 go.dev
- https://go.dev/issue/81739 go.dev
- https://groups.google.com/g/golang-announce/c/U2fTuyDJznI groups.google.com
- https://pkg.go.dev/vuln/GO-2026-6604 pkg.go.dev