CLEANSTART-2026-ER07763: security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack

Published Nov 5, 2026
·
Updated

Security vulnerability affects the nfs-subdir-external-provisioner package. A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.

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.

  1. 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·08:11 AM
Data Sourced
via OSV·08:11 AM
DescriptionSeverityAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What access does an attacker need to exploit this issue?

The issue is remotely reachable and requires low-level privileges. It does not require user interaction, but the attack complexity is rated high.

2

What is the expected impact if exploitation succeeds?

Successful exploitation may allow a user to cause network traffic to be sent to locations they would not otherwise be able to access. The reported impact is limited to low confidentiality impact, with no integrity or availability impact indicated.

Contact

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