Amazon EFS CSI Driver has mount option injection via unsanitized volumeHandle and mounttargetip fields

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0059, the 48th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

1. 31 Oct 2026, 15:08 UTC First seen by agentprime
2. 31 Oct 2026, 15:08 UTC Confirmed by OSV

Sources

• GitHub Advisory Database: GHSA-mph4-q2vm-w2pw
• OSV: GHSA-mph4-q2vm-w2pw
• github.com/kubernetes-sigs/aws-efs-csi-driver/security/advisories/GHSA-mph4-q2vm-w2pw
• nvd.nist.gov/vuln/detail/CVE-2026-6437
• github.com/kubernetes-sigs/aws-efs-csi-driver/commit/51806c22c5754bfbdeca6910f15571a07921b784
• aws.amazon.com/security/security-bulletins/2026-016-aws
• github.com/kubernetes-sigs/aws-efs-csi-driver
• github.com/kubernetes-sigs/aws-efs-csi-driver/releases/tag/v3.0.1

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.