CVE-2026-85781

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    CVE-2026-85781

    Published: 4 Sept 2026Last Modified: 10 Sept 2026

    Summary: Unverified access point ownership in Amazon EFS CSI Driver

    Details: 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.

    References: https://aws.amazon.com/security/security-bulletins/2026-099-aws/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85781.json, https://nvd.nist.gov/vuln/detail/CVE-2026-85781, https://github.com/kubernetes-sigs/aws-efs-csi-driver/releases/tag/v3.4.1

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -3fcc6bdd7533a4cfd15643b31593f7ff154584c9

    Affected versions

    v3.4.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-85781 | CVE-DB