CVE-2026-27139
Low
Description
On Unix platforms, when listing the contents of a directory using File.ReadDir or File.Readdir the returned FileInfo could reference a file outside of the Root in which the File was opened. The impact of this escape is limited to reading metadata provided by lstat from arbitrary locations on the filesystem without permitting reading or writing files outside the root.
SeverityLow
CVSS2.5
Exploit probability—
ProductGo
PublishedMar 6, 2026
First seenMar 6, 2026
Weakness typeCWE-363CWE-363
How to fix
Update
- golang go1.25.8 or later
- stdlib1.25.8, 1.26.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| golang go | v < 1.25.8, 1.26.0 | 1.25.8 |
| stdlibGo | v < 1.25.8, 1.26.0-0 ≤ v < 1.26.1 | 1.25.8, 1.26.1 |
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