Bug 2544868 (CVE-2026-103505)

Summary: CVE-2026-103505 github.com/kubernetes-sigs/aws-efs-csi-driver: AWS EFS CSI Driver: Arbitrary mount option injection via mounttargetipmap attribute
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, sghai, sidsharm, suppawar, vlaad
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the AWS Elastic File System (EFS) Container Storage Interface (CSI) Driver. A remote authenticated user with permissions to create persistent storage volumes can supply crafted comma-separated values within volume configuration attributes. This improper input handling allows the injection of arbitrary mount options, potentially leading to unauthorized access to or modification of underlying file system data.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-10-01 23:11:20 UTC
Improper neutralization of argument delimiters in the volume handling component in AWS EFS CSI Driver (aws-efs-csi-driver) v3.1.0 through v3.4.2 might allow remote authenticated users with PersistentVolume creation permissions to inject arbitrary mount options via comma-separated values in the mounttargetipmap volumeAttribute.



To remediate this issue, users should upgrade to version v3.5.0 or later.