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CVE PROGRAM SOURCE RECORD2.5 Low

CVE-2026-27139

FileInfo can escape from a Root in os

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Go standard library os

Default version status: unaffected

  • 0 to < 1.25.8affected
  • 1.26.0-0 to < 1.26.1affected

References