CVE-2021-25741

Symlink Exchange Can Allow Host Filesystem Access

Published Sep 20, 2021 CVSS 3.1 · 8.8 High EPSS 8.0% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-f5f7-6478-qm6p Files or Directories Accessible to External Parties in kubernetes
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
kubernetes
Published
Updated
Sep 16, 2024, 11:26 PM
Reserved
Jan 21, 2021, 12:00 AM
Status
Modified
Published
Sep 20, 2021, 5:15 PM
Modified
Jun 17, 2026, 3:42 AM
Severity
Important
Public date
Sep 15, 2021, 4:00 PM