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CVE-2019-11255

22
FAUCET Score

CVE-2019-11255 describes an improper input validation vulnerability in Kubernetes CSI sidecar containers (external-provisioner, external-snapshotter, external-resizer) affecting various versions of Kubernetes and Red Hat OpenShift Container Platform. This flaw allows an authenticated attacker to achieve unauthorized PersistentVolume data access or volume mutation during specific storage operations. Rated as MEDIUM severity with a CVSS score of 6.5, the vulnerability requires high privileges but has low attack complexity, leading to high confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.4.1, <= 0.4.2CPE matchmatch criteria
cpe:2.3:a:kubernetes:external-provisioner:*:*:*:*:*:*:*:*
>= 1.0.0, <= 1.0.1CPE matchmatch criteria
cpe:2.3:a:kubernetes:external-provisioner:*:*:*:*:*:*:*:*
>= 1.1.0, <= 1.2.1CPE matchmatch criteria
cpe:2.3:a:kubernetes:external-provisioner:*:*:*:*:*:*:*:*
1.3.0CPE matchmatch criteria
cpe:2.3:a:kubernetes:external-provisioner:1.3.0:*:*:*:*:*:*:*
>= 0.1.0, <= 0.2.0CPE matchmatch criteria
cpe:2.3:a:kubernetes:external-resizer:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.2
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.76%
Probability of exploitation in next 30 days
EPSS Percentile
75.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0176 is in the 82nd percentile among its peer group of 3,562 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (15)

check_pointpatch availablevia llm_extracted
View patch
chromepatch availablevia llm_extracted
View patch
gopatch availablevia ghsa
Product: github.com/kubernetes-csi/external-provisionerFixed in: 1.2.2
gopatch availablevia ghsa
Product: github.com/kubernetes-csi/external-provisionerFixed in: 1.3.1
gopatch availablevia ghsa
Product: github.com/kubernetes-csi/external-snapshotter/v6Fixed in: 1.0.2
gopatch availablevia ghsa
Product: github.com/kubernetes-csi/external-snapshotter/v6Fixed in: 1.2.2
gopatch availablevia ghsa
Product: github.com/kubernetes-csi/external-provisionerFixed in: 0.4.3
gopatch availablevia ghsa
Product: github.com/kubernetes-csi/external-provisionerFixed in: 1.0.2
infiniflowpatch availablevia llm_extracted
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.2Fixed in: openshift-external-storage-0:0.0.2-11.gitd3c94f0.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.2Fixed in: openshift4/ose-csi-external-provisioner-rhel7:v4.2.10-201912022352
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.1Fixed in: openshift-external-storage-0:0.0.2-11.gitd3c94f0.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: openshift-external-storage-0:0.0.2-10.gitd3c94f0.el7
View patch
vuepatch availablevia llm_extracted
View patch
github_advisoryworkaround availablevia nvd_reference
View patch

Vendor Advisories (6)

goGHSA-f4w6-3rh6-6q4qmedium

Kubernetes CSI Sidecar Containers Can Allow Unauthorized Data Access

May 24, 2022
redhatCVE-2019-11255Moderate

kubernetes-csi: CSI volume snapshot, cloning and resizing features can result in unauthorized volume data access or mutation

Nov 15, 2019
vuellm-vue-10a8fb25c59bda0a

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

chromellm-chrome-53c8e086e1312457

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

check_pointllm-check_point-4f3eac82c5ede51d

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

infiniflowllm-infiniflow-c1093661e27475b1

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

References

access.redhat.com / errata/RHSA-2019:4054
Third Party Advisory
access.redhat.com / errata/RHSA-2019:4096
Third Party Advisory
access.redhat.com / errata/RHSA-2019:4099
Third Party Advisory
access.redhat.com / errata/RHSA-2019:4225
Third Party Advisory
github.com / kubernetes/kubernetes/issues/85233
MitigationThird Party Advisory
groups.google.com / forum
security.netapp.com / advisory/ntap-20200810-0003