---
id: CVE-2026-85781
title: >-
  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…
summary: >-
  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…
severity: high
cvss: 8.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H'
cwe:
  - CWE-283
  - CWE-639
published: '2026-09-04'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T14:00:33.017'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-85781'
references:
  - url: 'https://aws.amazon.com/security/security-bulletins/2026-099-aws/'
    label: ff89ba41-3aa1-4d27-914a-91399e9639e5
  - url: 'https://github.com/kubernetes-sigs/aws-efs-csi-driver/releases/tag/v3.4.1'
    label: ff89ba41-3aa1-4d27-914a-91399e9639e5
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-85781.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-85781'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2528853'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-85781'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-85781'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
epss: 0.00443
epssPercentile: 0.35919
ingestedAt: '2026-09-08T15:33:26.964Z'
vendor: Red Hat
product: Red Hat OpenShift Container Platform 4
affected:
  - openshift_container_platform 4
scores:
  nvd: 8.7
  vendor: 7.7
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Important · affected: Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat OpenShift Container Platform 4 · updated 2026-09-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-85781.json)