CVE-2026-27139: Golang Go

Low severity, CVSS 2.5. EPSS: 0.1% chance of exploitation in the next 30 days.

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.

Affected products

• Golang Go: before 1.25.8 (fixed in 1.25.8); version 1.26.0 only

Published 2026-03-06. Last modified 2026-06-17.