{"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":0.0026,"epssPercentile":0.18111,"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},"slug":"CVE-2026-85781","body":"## Overview\n\nUnverified 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.\n\n\n\nTo remediate this issue, users should upgrade to version v3.4.1.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **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)","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":47.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}