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TI-2026-58838 Aliases CVE-2026-85781

Unverified access point ownership in Amazon EFS CSI Driver

Priority LOW 24CWE-283Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
None · None · None
Fix status
Partial Red Hat: 1 fixed, 2 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.

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 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00443 38th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 1 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AWSaws-efs-csi-driverup to 3.4.0—No fix listedCNA
  • aws-efs-csi-driver VendorAWS Affected up to 3.4.0 Fixed in — No fix listed CNA

Remediation

Red Hat 1 advisory

  • RHSA-2026:89199 Released 2026-10-26 · Red Hat rating Important
    OpenShift Container Platform 4.22.20 security and extras update
    • Red Hat OpenShift Container Platform 4.22 registry.redhat.io/openshift4/nmstate-console-plugin-rhel9, registry.redhat.io/openshift4/ose-aws-efs-csi-driver-container-rhel9, registry.redhat.io/openshift4/ose-support-log-gather-rhel9-operator

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift Container Platform 4AffectedNo fix yet
Red Hat OpenShift Container Platform 5AffectedNo fix yet
Red Hat OpenShift Container Platform 4.22Fixed RHSA-2026:89199
Not affected: 1 product
  • Red Hat OpenShift Container Platform 4.22

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-85781
  2. 2026-10-29 Fix available: Red Hat OpenShift Container Platform 4.22 · Red Hat
  3. 2026-10-30 Fix available: RHSA-2026:89199 · Red Hat
  4. 2026-10-30 Affected versions changed · Red Hat

References

Patch 1

Advisory 1

  • TI-2026-23989 crypto: algif_aead - Revert to operating out-of-place KEVCVSS 3.1HIGH 7.8
  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2024-18648 Amazon AWS Amplify CLI before 12.10.1 incorrectly configures the role trust policy of IAM… CVSS 3.1CRITICAL 9.8
  • TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
  • TI-2025-03847 Input validation issue in AWS Amplify Studio UI component properties CVSS 4.0CRITICAL 9.0
  • TI-2026-11603 HTTP/2 Stream Parser Confusion Body-Inspection Bypass in Amazon CloudFront with AWS WAF CVSS 4.0HIGH 7.9
See all 383 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences