CLEANSTART-2026-BX77375: security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node

Q: Who can exploit this issue?

Exploitation requires a user with high privileges and user interaction. The issue is reachable over the network and may allow that user to redirect pod traffic to private networks on a Node.

Q: What is the potential impact?

The reported impact is limited confidentiality and integrity impact, with no availability impact indicated. The vulnerability can affect a different security scope than the initially compromised component, as indicated by scope change.

Published Nov 5, 2026

Updated

Security vulnerability affects the nfs-subdir-external-provisioner package. A security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node.

Affected Software

1 affected componentFixes available

cleanstart/nfs-subdir-external-provisioner<4.0.2-r4

4.0.2-r4

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade cleanstart/nfs-subdir-external-provisioner to a version that resolves this vulnerability.
Fixed in 4.0.2-r4

Event History

Nov 5, 2026

Advisory Published

via OSV·08:10 AM

Data Sourced

via OSV·08:10 AM

DescriptionSeverityAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

CVE-2021-25737

Frequently Asked Questions

Who can exploit this issue?

Exploitation requires a user with high privileges and user interaction. The issue is reachable over the network and may allow that user to redirect pod traffic to private networks on a Node.

What is the potential impact?

The reported impact is limited confidentiality and integrity impact, with no availability impact indicated. The vulnerability can affect a different security scope than the initially compromised component, as indicated by scope change.

CLEANSTART-2026-BX77375: security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node

Affected Software

Remediation

Event History

Child vulnerabilities

Frequently Asked Questions

Who can exploit this issue?

What is the potential impact?

Company

Resources

Contact

Frequently Asked Questions

Who can exploit this issue?

What is the potential impact?