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CVE-2021-20218

HIGH

7.4

CVSS Score

Published: March 16, 2021 at 09:00 PM UTC

Updated: June 17, 2026 at 03:33 AM UTC

9 products affected across 1 vendorOpenShift Container PlatformBuild of QuarkusProcess Automation

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Severity

HIGH7.4

Exploit prediction

EPSS 1%

Description

A flaw was found in the fabric8 kubernetes-client in version 4.2.0 and after. This flaw allows a malicious pod/container to cause applications using the fabric8 kubernetes-client `copy` command to extract files outside the working path. The highest threat from this vulnerability is to integrity and system availability. This has been fixed in kubernetes-client-4.13.2 kubernetes-client-5.0.2 kubernetes-client-4.11.2 kubernetes-client-4.7.2

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Amq Online · Red Hatrpm

95%

All versions

Build of Quarkus · Red Hatrpm

95%

All versions

Codeready Studio · Red Hatrpm

95%

Descision Manager · Red Hat

95%

FABRIC8 Kubernetes · Red Hat

95%

4.12.0 ≤ v < 4.13.24.2.0 ≤ v < 4.7.24.8.0 ≤ v < 4.11.25.0.0 ≤ v < 5.0.2kubernetes-client-4.2.0 and after

Affected range stops below 4.11.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.13.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.7.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.0.2, so it looks safe — our inference, not a vendor statement

Integration Camel K · Red Hatrpm

95%

All versions

JBoss Fuse · Red Hat

95%

OpenShift Container Platform · Red Hatcontainer

95%

Process Automation · Red Hatrpm

95%

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCIssue TrackingVendor Advisory

Source: [email protected]

https://bugzilla.redhat.com/show_bug.cgi?id=1923405

x_refsource_MISCPatchThird Party Advisory

Source: [email protected]

https://github.com/fabric8io/kubernetes-client/issues/2715

CVSS

7.4HIGH[email protected]

Attack Vector: NETWORK
Complexity: HIGH
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-22

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