Kubernetes CSI volume snapshot, cloning and resizing features can result in unauthorized volume data access or mutation
Priority LOW 33CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat.
Summary
Improper input validation in Kubernetes CSI sidecar containers for external-provisioner (<v0.4.3, <v1.0.2, v1.1, <v1.2.2, <v1.3.1), external-snapshotter (<v0.4.2, <v1.0.2, v1.1, <1.2.2), and external-resizer (v0.1, v0.2) could result in unauthorized PersistentVolume data access or volume mutation during snapshot, restore from snapshot, cloning and resizing operations.
Why it matters now
EPSS 0.02014 81st percentileScored 2026-11-07
Fix Fixed kubernetes-csi external-provisioner (Kubernetes): 1.0.2, 1.2.2, 1.3.1 +1kubernetes-csi external-snapshotter (Kubernetes): 0.4.2, 1.0.2, 1.2.2+2 more productsRed Hat: 4 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Kubernetes | kubernetes-csi external-provisioner | before 1.0.2; 1.1; before 1.2.2; before 1.3.1; v1.14 to before prior to 0.4.3 | 1.0.2, 1.2.2, 1.3.1, prior to 0.4.3 | Patch available | CNA |
| Kubernetes | kubernetes-csi external-snapshotter | before 0.4.2; before 1.0.2; 1.1; before 1.2.2 | 0.4.2, 1.0.2, 1.2.2 | Patch available | CNA |
| Kubernetes | kubernetes-csi external-resizer | 0.1; 0.2 | — | No fix listed | CNA |
| — | github.com/kubernetes-csi/external-provisioner (Go) | before 0.4.3 | 0.4.3 | Patch available | GHSA-f4w6-3rh6-6q4q |
| — | github.com/kubernetes-csi/external-provisioner (Go) | 1.0.0 to before 1.0.2 | 1.0.2 | Patch available | GHSA-f4w6-3rh6-6q4q |
| — | github.com/kubernetes-csi/external-provisioner (Go) | — | — | No fix listed | GHSA-f4w6-3rh6-6q4q |
| — | github.com/kubernetes-csi/external-provisioner (Go) | 1.2.0 to before 1.2.2 | 1.2.2 | Patch available | GHSA-f4w6-3rh6-6q4q |
| — | github.com/kubernetes-csi/external-provisioner (Go) | 1.3.0 to before 1.3.1 | 1.3.1 | Patch available | GHSA-f4w6-3rh6-6q4q |
| — | github.com/kubernetes-csi/external-snapshotter/v6 (Go) | 1.0.0 to before 1.0.2 | 1.0.2 | Patch available | GHSA-f4w6-3rh6-6q4q |
| — | github.com/kubernetes-csi/external-snapshotter/v6 (Go) | — | — | No fix listed | GHSA-f4w6-3rh6-6q4q |
| — | github.com/kubernetes-csi/external-snapshotter/v6 (Go) | 1.2.0 to before 1.2.2 | 1.2.2 | Patch available | GHSA-f4w6-3rh6-6q4q |
| — | github.com/kubernetes-csi/external-resizer (Go) | — | — | No fix listed | GHSA-f4w6-3rh6-6q4q |
| — | github.com/kubernetes-csi/external-resizer (Go) | — | — | No fix listed | GHSA-f4w6-3rh6-6q4q |
- kubernetes-csi external-provisioner VendorKubernetes Affected before 1.0.2; 1.1; before 1.2.2; before 1.3.1; v1.14 to before prior to 0.4.3 Fixed in 1.0.2, 1.2.2, 1.3.1, prior to 0.4.3 Patch available CNA
- kubernetes-csi external-snapshotter VendorKubernetes Affected before 0.4.2; before 1.0.2; 1.1; before 1.2.2 Fixed in 0.4.2, 1.0.2, 1.2.2 Patch available CNA
- kubernetes-csi external-resizer VendorKubernetes Affected 0.1; 0.2 Fixed in — No fix listed CNA
- github.com/kubernetes-csi/external-provisioner (Go) Vendor— Affected before 0.4.3 Fixed in 0.4.3 Patch available GHSA-f4w6-3rh6-6q4q
- github.com/kubernetes-csi/external-provisioner (Go) Vendor— Affected 1.0.0 to before 1.0.2 Fixed in 1.0.2 Patch available GHSA-f4w6-3rh6-6q4q
- github.com/kubernetes-csi/external-provisioner (Go) Vendor— Affected — Fixed in — No fix listed GHSA-f4w6-3rh6-6q4q
- github.com/kubernetes-csi/external-provisioner (Go) Vendor— Affected 1.2.0 to before 1.2.2 Fixed in 1.2.2 Patch available GHSA-f4w6-3rh6-6q4q
- github.com/kubernetes-csi/external-provisioner (Go) Vendor— Affected 1.3.0 to before 1.3.1 Fixed in 1.3.1 Patch available GHSA-f4w6-3rh6-6q4q
- github.com/kubernetes-csi/external-snapshotter/v6 (Go) Vendor— Affected 1.0.0 to before 1.0.2 Fixed in 1.0.2 Patch available GHSA-f4w6-3rh6-6q4q
- github.com/kubernetes-csi/external-snapshotter/v6 (Go) Vendor— Affected — Fixed in — No fix listed GHSA-f4w6-3rh6-6q4q
- github.com/kubernetes-csi/external-snapshotter/v6 (Go) Vendor— Affected 1.2.0 to before 1.2.2 Fixed in 1.2.2 Patch available GHSA-f4w6-3rh6-6q4q
- github.com/kubernetes-csi/external-resizer (Go) Vendor— Affected — Fixed in — No fix listed GHSA-f4w6-3rh6-6q4q
- github.com/kubernetes-csi/external-resizer (Go) Vendor— Affected — Fixed in — No fix listed GHSA-f4w6-3rh6-6q4q
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:kubernetes:external-provisioner:*:*:*:*:*:*:*:* | 0.4.1 – 0.4.2; 1.0.0 – 1.0.1; 1.1.0 – 1.2.1 | Vulnerable | Kubernetes |
| cpe:2.3:a:kubernetes:external-provisioner:1.3.0:*:*:*:*:*:*:* | 1.3.0 | Vulnerable | Kubernetes |
| cpe:2.3:a:kubernetes:external-resizer:*:*:*:*:*:*:*:* | 0.1.0 – 0.2.0 | Vulnerable | Kubernetes |
| cpe:2.3:a:kubernetes:external-snapshotter:*:*:*:*:*:*:*:* | 0.4.0 – 0.4.1; 1.0.0 – 1.0.1; 1.1.0 – 1.2.1 | Vulnerable | Kubernetes |
| cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:* | 3.11 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openshift_container_platform:4.1:*:*:*:*:*:*:* | 4.1 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openshift_container_platform:4.2:*:*:*:*:*:*:* | 4.2 | Vulnerable | Red Hat |
- cpe:2.3:a:kubernetes:external-provisioner:*:*:*:*:*:*:*:* Versions 0.4.1 – 0.4.2; 1.0.0 – 1.0.1; 1.1.0 – 1.2.1 Vulnerable ·Kubernetes
- cpe:2.3:a:kubernetes:external-provisioner:1.3.0:*:*:*:*:*:*:* Versions 1.3.0 Vulnerable ·Kubernetes
- cpe:2.3:a:kubernetes:external-resizer:*:*:*:*:*:*:*:* Versions 0.1.0 – 0.2.0 Vulnerable ·Kubernetes
- cpe:2.3:a:kubernetes:external-snapshotter:*:*:*:*:*:*:*:* Versions 0.4.0 – 0.4.1; 1.0.0 – 1.0.1; 1.1.0 – 1.2.1 Vulnerable ·Kubernetes
- cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:* Versions 3.11 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openshift_container_platform:4.1:*:*:*:*:*:*:* Versions 4.1 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openshift_container_platform:4.2:*:*:*:*:*:*:* Versions 4.2 Vulnerable ·Red Hat
Remediation
- Fix · CNA kubernetes-csi external-provisioner (Kubernetes) Fixed in 1.0.2, 1.2.2, 1.3.1, prior to 0.4.3
- Fix · CNA kubernetes-csi external-snapshotter (Kubernetes) Fixed in 0.4.2, 1.0.2, 1.2.2
- Fix · GHSA-f4w6-3rh6-6q4q github.com/kubernetes-csi/external-provisioner (Go) Fixed in 0.4.3 Advisory →
- Fix · GHSA-f4w6-3rh6-6q4q github.com/kubernetes-csi/external-provisioner (Go) Fixed in 1.0.2 Advisory →
- Fix · GHSA-f4w6-3rh6-6q4q github.com/kubernetes-csi/external-provisioner (Go) Fixed in 1.2.2 Advisory →
- Fix · GHSA-f4w6-3rh6-6q4q github.com/kubernetes-csi/external-provisioner (Go) Fixed in 1.3.1 Advisory →
- Fix · GHSA-f4w6-3rh6-6q4q github.com/kubernetes-csi/external-snapshotter/v6 (Go) Fixed in 1.0.2 Advisory →
- Fix · GHSA-f4w6-3rh6-6q4q github.com/kubernetes-csi/external-snapshotter/v6 (Go) Fixed in 1.2.2 Advisory →
Red Hat 4 advisories
- RHSA-2019:4225 Released 2019-12-17 · Red Hat rating ModerateOpenShift Container Platform 4.1 openshift-external-storage security update
- Red Hat OpenShift Container Platform 4.1 openshift-external-storage-0.0.2-11.gitd3c94f0.el7, openshift-external-storage-cephfs-provisioner-0.0.2-11.gitd3c94f0.el7, openshift-external-storage-efs-provisioner-0.0.2-11.gitd3c94f0.el7 +4
- RHSA-2019:4054 Released 2019-12-16 · Red Hat rating ModerateOpenShift Container Platform 3.11 openshift-external-storage security update
- Red Hat OpenShift Container Platform 3.11 openshift-external-storage-0.0.2-10.gitd3c94f0.el7, openshift-external-storage-cephfs-provisioner-0.0.2-10.gitd3c94f0.el7, openshift-external-storage-efs-provisioner-0.0.2-10.gitd3c94f0.el7 +4
- RHSA-2019:4096 Released 2019-12-11 · Red Hat rating ModerateOpenShift Container Platform 4.2 openshift-external-storage security update
- Red Hat OpenShift Container Platform 4.2 openshift-external-storage-0.0.2-11.gitd3c94f0.el7, openshift-external-storage-cephfs-provisioner-0.0.2-11.gitd3c94f0.el7, openshift-external-storage-efs-provisioner-0.0.2-11.gitd3c94f0.el7 +4
Show 1 more Red Hat advisories
- RHSA-2019:4099 Released 2019-12-11 · Red Hat rating ModerateOpenShift Container Platform 4.2 csi-provisioner-container security update
- Red Hat OpenShift Container Platform 4.2 openshift4/ose-csi-external-provisioner-rhel7
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 3.11 | Fixed | RHSA-2019:4054 |
| Red Hat OpenShift Container Platform 4.1 | Fixed | RHSA-2019:4225 |
| Red Hat OpenShift Container Platform 4.2 | Fixed | RHSA-2019:4096, RHSA-2019:4099 |
Not affected: 1 product
- Red Hat OpenShift Container Platform 3.11
Timeline
- 2026-10-02 Threatist record created from CVE-2019-11255
- 2026-10-03 Alias added: GHSA-f4w6-3rh6-6q4q
References
Advisory 6
Sources
- CVE-2019-11255 · CVE Program
- CVE-2019-11255 · NVD
- FIRST EPSS
- GHSA-f4w6-3rh6-6q4q · GitHub Advisory Database · CC BY 4.0
- CVE-2019-11255 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences