efs-utils and aws-efs-csi-driver have race condition during concurrent TLS mounts

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

4.2 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

EPSS

• CVE-2022-46174: 0.64% estimated exploitation activity in the next 30 days; percentile 50.72 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Impact A potential race condition issue exists within the Amazon EFS mount helper in efs-utils versions v1.34.3 and below, and aws-efs-csi-driver versions v1.4.7 and below. When using TLS to mount file systems, the mount helper allocates a local port for stunnel to receive NFS connections prior to applying the TLS tunnel. In affected versions, concurrent mount operations can allocate the same local port, leading to either failed mount operations or an inappropriate mapping from an EFS customer’s local mount points to that customer’s EFS file systems. Affected versions: efs-utils <= v1.34.3, aws-efs-csi-driver <= v1.4.7 Patches The patches are included in efs-utils version v1.34.4 and newer, and in aws-efs-csi-driver v1.4.8 and newer. Workarounds There is no recommended work around. We recommend affected users update the installed version of efs-utils to v1.34.4+ or aws-efs-csi-driver to v1.4.8+ to address this issue. References…

Published by the source

30 Dec 2022, 16:57 UTC

Last modified by the source

30 Jan 2023, 05:06 UTC

Source last checked

26 Oct 2026, 14:54 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-4fv8-w65m-3932

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# Patch Next advisory brief: CVE-2022-46174

Advisory: efs-utils and aws-efs-csi-driver have race condition during concurrent TLS mounts
IDs: CVE-2022-46174, GHSA-4fv8-w65m-3932
Record: https://patchnext.com/advisories/cve-2022-46174 (revision 1, source checked 26 Oct 2026, 14:54 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 4.2)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: github.com/kubernetes-sigs/aws-efs-csi-driver 1.4.8. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/kubernetes-sigs/aws-efs-csi-driver: affected <= 1.4.7; fixed in 1.4.8

## Suggested inspection (read-only)
- Go github.com/kubernetes-sigs/aws-efs-csi-driver: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/kubernetes-sigs/aws-efs-csi-driver.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-4fv8-w65m-3932 (GitHub-reviewed advisory GHSA-4fv8-w65m-3932 lists affected ranges: Go github.com/kubernetes-sigs/aws-efs-csi-driver >=0 <=1.4.7)

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