CVE-2026-85781

Unverified ownership of a storage access point in the volume deletion component of the Amazon EFS CSI Driver before v3.4.1 might allow an authenticated Kubernetes user with PersistentVolume creation privileges to cause recursive deletion of directories on an EFS filesystem they are not authorized to access, via a crafted PersistentVolume volumeHandle that pairs an access point from one filesystem with a different target filesystem. To remediate this issue, users should upgrade to version v3.4.1.

CVSS v3 8.7 HIGH

8.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.3 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/2026-099-aws/
https://github.com/kubernetes-sigs/aws-efs-csi-driver/releases/tag/v3.4.1

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-04 19:17

Updated : 2026-09-08 14:00

NVD link : CVE-2026-85781

Mitre link : CVE-2026-85781

CVE.ORG link : CVE-2026-85781

JSON object : View

Products Affected

No product.

CWE

CWE-283

Unverified Ownership

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