CVE intelligence

CVE-2026-27139

Vulnerability intelligence

Published Mar 6, 2026Sources checked Oct 3, 2026

2.5LOWCVSS out of 10

What this means

Review the available evidence

CVE-2026-27139 and is rated Low severity with a CVSS score of 2.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.1%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-27139?

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.