Kubernetes CSI Driver SMB File Manipulation Vulnerability CVE CVSS 6.5
Summary
CERT-Bund issued a security advisory regarding a vulnerability in Open Source Kubernetes CSI Driver for SMB versions prior to 1.20.1. The flaw, with a CVSS Base Score of 6.5 (medium), allows a remote authenticated attacker to manipulate files. Organizations running affected Kubernetes deployments on Linux and UNIX systems should apply mitigations or update to version 1.20.1 or later.
What changed
CERT-Bund published security advisory WID-SEC-2026-1051 disclosing a file manipulation vulnerability in Open Source Kubernetes CSI Driver for SMB (versions below 1.20.1). The vulnerability carries a CVSS Base Score of 6.5 (medium) and enables authenticated remote attackers to manipulate files on affected systems running Linux or UNIX.
Organizations operating Kubernetes clusters that include the CSI Driver for SMB component should prioritize updating to version 1.20.1 or later. Security teams should assess their Kubernetes environments for the presence of this component and verify patch status. Until patches can be applied, compensating controls such as network segmentation, access restrictions, and enhanced monitoring should be considered.
What to do next
- Update Kubernetes CSI Driver for SMB to version 1.20.1 or later
- Review Kubernetes deployments for use of affected CSI Driver for SMB component
- Apply compensating security controls if immediate patching is not feasible
Archived snapshot
Apr 15, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
[WID-SEC-2026-1051] Kubernetes: Schwachstelle ermöglicht Manipulation von Dateien CVSS Base Score 6.5 (mittel) CVSS Temporal Score 5.7 (mittel) Remoteangriff ja Datum 12.04.2026 Stand 13.04.2026 Mitigation ja
Betroffene Systeme
Betriebssystem
- Linux
- UNIX
Produktbeschreibung
Kubernetes ist ein Werkzeug zur Automatisierung der Bereitstellung, Skalierung und Verwaltung von containerisierten Anwendungen.
Produkte
12.04.2026
- Open Source Kubernetes CSI Driver for SMB <1.20.1
Angriff
Angriff
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Kubernetes ausnutzen, um Dateien zu manipulieren. CVE Informationen Versionshistorie Feedback zum Advisory geben
Related changes
Get daily alerts for CERT-Bund Security Advisories
Daily digest delivered to your inbox.
Free. Unsubscribe anytime.
Source
About this page
Every important government, regulator, and court update from around the world. One place. Real-time. Free. Our mission
Source document text, dates, docket IDs, and authority are extracted directly from CERT-Bund.
The summary, classification, recommended actions, deadlines, and penalty information are AI-generated from the original text and may contain errors. Always verify against the source document.
Classification
Who this affects
Taxonomy
Browse Categories
Get alerts for this source
We'll email you when CERT-Bund Security Advisories publishes new changes.
Subscribed!
Optional. Filters your digest to exactly the updates that matter to you.