CVE-2026-27139
FileInfo can escape from a Root in os
Vexday Risk Score
8Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 2.5EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
06 Mar 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected products
Go standard library · osWant to know if your infrastructure is exposed to this?
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