CVE-2025-22873

low-risk
Published 2026-02-04

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.

Do I need to act?

-
0.00% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.8/10 Low
LOCAL / LOW complexity

Affected Products (1)

Go

Affected Vendors

Golang

References (5)

Patch https://go.dev/cl/670036
Issue Tracking https://go.dev/issue/73555
Mailing List https://groups.google.com/g/golang-announce/c/UZoIkUT367A/m/5WDxKizJAQAJ
Vendor Advisory https://pkg.go.dev/vuln/GO-2026-4403
Mailing List http://www.openwall.com/lists/oss-security/2025/05/06/2
19
/ 100
low-risk
Severity 14/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal