CVE-2025-22873
Low
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.
SeverityLow
CVSS3.8
Exploit probability—
ProductGo
PublishedFeb 4, 2026
First seenFeb 4, 2026
Weakness typeCWE-23CWE-23
How to fix
Update
- golang go1.23.9, 1.24.3 or later
- stdlib1.23.9, 1.24.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| golang go | v < 1.23.9, 1.24.0 ≤ v < 1.24.3 | 1.23.9, 1.24.3 |
| stdlibGo | v < 1.23.9, 1.24.0-0 ≤ v < 1.24.3 | 1.23.9, 1.24.3 |
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