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CVE-2019-11255

Kubernetes CSI volume snapshot, cloning and resizing features can result in unauthorized volume data access or mutation

4.8 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
High
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
Low
Availability
None

Exploit likelihood

2.01%Up 0.4 points since Apr 14, 2021
90%50%10%1%

What each source reports

CVE List Score used 4.8

Kubernetes CSI volume snapshot, cloning and resizing features can result in unauthorized volume data access or mutation

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.

Record
CVE-2019-11255
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N
Weakness
CWE-20
Updated
2026-11-02
EUVDEUVD-2022-3689 4.8

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.

Record
EUVD-2022-3689
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N
Updated
2026-11-03
GitHub AdvisoriesGHSA-f4w6-3rh6-6q4q 6.5

Kubernetes CSI Sidecar Containers Can Allow Unauthorized Data Access

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.

Record
GHSA-f4w6-3rh6-6q4q
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-20
Updated
2026-11-02
NVD 4.8

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.

Record
CVE-2019-11255
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
CVSS 2.0
5.5 MediumAV:N/AC:L/Au:S/C:P/I:P/A:N
Weakness
CWE-20
Updated
2026-11-02
OSV 6.5

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.

Record
CVE-2019-11255
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Updated
2026-11-02
OSVGHSA-f4w6-3rh6-6q4q 6.5

Kubernetes CSI Sidecar Containers Can Allow Unauthorized Data Access

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.

Record
GHSA-f4w6-3rh6-6q4q
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-20
Updated
2026-11-02
OSVRHSA-2019:4054 4.8

Red Hat Security Advisory: OpenShift Container Platform 3.11 openshift-external-storage security update

Record
RHSA-2019:4054
CVSS 3.0
4.8 MediumCVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N
Updated
2026-11-02
OSVRHSA-2019:4096 4.8

Red Hat Security Advisory: OpenShift Container Platform 4.2 openshift-external-storage security update

Record
RHSA-2019:4096
CVSS 3.0
4.8 MediumCVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N
Updated
2026-11-02
OSVRHSA-2019:4225 4.8

Red Hat Security Advisory: OpenShift Container Platform 4.1 openshift-external-storage security update

Record
RHSA-2019:4225
CVSS 3.0
4.8 MediumCVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
github.com/kubernetes-csi/external-provisioner
Go
 before 0.4.3
0.4.3
github.com/kubernetes-csi/external-provisioner
Go
 1.0.0 up to 1.0.2
1.0.2
github.com/kubernetes-csi/external-provisioner
Go
 1.1 to 1.1 None known
github.com/kubernetes-csi/external-provisioner
Go
 1.2.0 up to 1.2.2
1.2.2
github.com/kubernetes-csi/external-provisioner
Go
 1.3.0 up to 1.3.1
1.3.1
github.com/kubernetes-csi/external-snapshotter/v6
Go
 1.0.0 up to 1.0.2
1.0.2
github.com/kubernetes-csi/external-snapshotter/v6
Go
 1.1 to 1.1 None known
github.com/kubernetes-csi/external-snapshotter/v6
Go
 1.2.0 up to 1.2.2
1.2.2
github.com/kubernetes-csi/external-resizer
Go
 0.1 to 0.1 None known
github.com/kubernetes-csi/external-resizer
Go
 0.2 to 0.2 None known
Show 28 moreShow less
Affected packages
PackageAffectedFixed
github.com/kubernetes-csi/external-provisioner
Go
 Listed versions
1.1
 None known
github.com/kubernetes-csi/external-snapshotter/v6
Go
 Listed versions
1.1
 None known
github.com/kubernetes-csi/external-resizer
Go
 Listed versions
0.1
 None known
github.com/kubernetes-csi/external-resizer
Go
 Listed versions
0.2
 None known
openshift-external-storage
Red Hat:openshift:3.11::el7
 before 0:0.0.2-10.gitd3c94f0.el7
0:0.0.2-10.gitd3c94f0.el7
openshift-external-storage-cephfs-provisioner
Red Hat:openshift:3.11::el7
 before 0:0.0.2-10.gitd3c94f0.el7
0:0.0.2-10.gitd3c94f0.el7
openshift-external-storage-debuginfo
Red Hat:openshift:3.11::el7
 before 0:0.0.2-10.gitd3c94f0.el7
0:0.0.2-10.gitd3c94f0.el7
openshift-external-storage-efs-provisioner
Red Hat:openshift:3.11::el7
 before 0:0.0.2-10.gitd3c94f0.el7
0:0.0.2-10.gitd3c94f0.el7
openshift-external-storage-local-provisioner
Red Hat:openshift:3.11::el7
 before 0:0.0.2-10.gitd3c94f0.el7
0:0.0.2-10.gitd3c94f0.el7
openshift-external-storage-manila-provisioner
Red Hat:openshift:3.11::el7
 before 0:0.0.2-10.gitd3c94f0.el7
0:0.0.2-10.gitd3c94f0.el7
openshift-external-storage-snapshot-controller
Red Hat:openshift:3.11::el7
 before 0:0.0.2-10.gitd3c94f0.el7
0:0.0.2-10.gitd3c94f0.el7
openshift-external-storage-snapshot-provisioner
Red Hat:openshift:3.11::el7
 before 0:0.0.2-10.gitd3c94f0.el7
0:0.0.2-10.gitd3c94f0.el7
openshift-external-storage
Red Hat:openshift:4.2::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage-cephfs-provisioner
Red Hat:openshift:4.2::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage-debuginfo
Red Hat:openshift:4.2::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage-efs-provisioner
Red Hat:openshift:4.2::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage-local-provisioner
Red Hat:openshift:4.2::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage-manila-provisioner
Red Hat:openshift:4.2::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage-snapshot-controller
Red Hat:openshift:4.2::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage-snapshot-provisioner
Red Hat:openshift:4.2::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage
Red Hat:openshift:4.1::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage-cephfs-provisioner
Red Hat:openshift:4.1::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage-debuginfo
Red Hat:openshift:4.1::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage-efs-provisioner
Red Hat:openshift:4.1::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage-local-provisioner
Red Hat:openshift:4.1::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage-manila-provisioner
Red Hat:openshift:4.1::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage-snapshot-controller
Red Hat:openshift:4.1::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7
openshift-external-storage-snapshot-provisioner
Red Hat:openshift:4.1::el7
 before 0:0.0.2-11.gitd3c94f0.el7
0:0.0.2-11.gitd3c94f0.el7

History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-11255 is a medium vulnerability (CVSS 4.8) in Kubernetes External-provisioner, published December 5, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.01%, the 81st percentile. Fixed in github.com/kubernetes-csi/external-provisioner 0.4.3.

References

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