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CVE-2021-25741

nvd nist
Published: Sep 20, 2021Modified: Jun 17, 2026

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8.1
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Exploitability: 2.8 / Impact: 5.2
Source: NVD

Description

A security issue was discovered in Kubernetes where a user may be able to create a container with subpath volume mounts to access files & directories outside of the volume, including on the host filesystem.

Affected (4)

Kubernetes
1 product
Kubernetes
Configuration A
4 vulnerable
Vulnerable SoftwareAffected Versions
Kubernetes
Kubernetes
Up to 1.19.14
Kubernetes
From 1.20.0 to 1.20.10
Kubernetes
From 1.21.0 to 1.21.4
Kubernetes
From 1.22.0 to 1.22.1

Related CWEs

CWE-20
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
CWE-552
Files or Directories Accessible to External Parties
The product makes files or directories accessible to unauthorized actors, even though they should not be.

References (6)

Source: jordan@liggitt.net
MitigationThird Party Advisory
Source: jordan@liggitt.net
Mailing ListMitigation
Source: jordan@liggitt.net
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
MitigationThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListMitigation
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.