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CVE-2026-27139

FileInfo can escape from a Root in os

Published: Mar 6, 2026Updated: Apr 21, 2026 Sources: CVE List NVD BDUCWE-22
NVD MITRE
2.5CVSSLOW
EPSS Score
0.2%
Top 90.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:HPR:LUI:NS:UC:LI:NA:N
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-22

Affected Products

gogolangOSS Libraries
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
Openshift Service MeshRed Hat Inc.
SaaSSaaS Service
Cloud & SaaS / container-orchestration
Red Hat OpenShift Container PlatformRed Hat Inc.
SaaSSaaS Service
Cloud & SaaS / container-orchestration
Red Hat OpenShift VirtualizationRed Hat Inc.
On-prem
Cloud & SaaS / virtualization
golangoss-projectUSOSS Libraries
red hat inc.commercialUSOperating Systemsaka red hat
and 5 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://go.dev/cl/749480
go.dev
https://go.dev/issue/77827
go.dev
https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk
groups.google.com
and 5 more references View all →

Timeline

Published
Mar 6, 2026
Last Updated
Apr 21, 2026

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