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Status published
High
CVE-2021-25741
Symlink Exchange Can Allow Host Filesystem Access
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Fabricio Voznika & Mark Wolters
References
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Affected Vendor
Kubernetes
View all reports →Affected Software
Kubernetes
Vulnerable Versions:
unspecified
Timeline
Official Publish:
September 20th, 2021
Last Modified:
September 16th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H