CVE-2026-85781
Published:September 04, 2026
Updated:September 22, 2026
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.
Affected Packages
https://github.com/kubernetes-sigs/aws-efs-csi-driver.git (GITHUB):
Affected version(s) >=v3.0.0 <v3.4.1Fix Suggestion:
Update to version v3.4.1github.com/kubernetes-sigs/aws-efs-csi-driver (GO):
Affected version(s) >=v1.7.8-0.20260410152103-d85b0262c5a1 <v1.7.8-0.20260723210347-3fcc6bdd7533Fix Suggestion:
Update to version v1.7.8-0.20260723210347-3fcc6bdd7533Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
5
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Unverified Ownership
EPSS
Base Score:
0.26