CVE-2019-11255

Name: CVE-2019-11255
Creator: NVD / NIST
Published: 2019-12-05T16:15:10.567+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.75%

Last modified Jun 17, 2026

CVE-2019-11255 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 1.75% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.75%

75.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Kubernetes	External-Provisioner	>= 0.4.1, <= 0.4.2
Kubernetes	External-Provisioner	>= 1.0.0, <= 1.0.1
Kubernetes	External-Provisioner	>= 1.1.0, <= 1.2.1
Kubernetes	External-Provisioner	1.3.0
Kubernetes	External-Resizer	>= 0.1.0, <= 0.2.0
Kubernetes	External-Snapshotter	>= 0.4.0, <= 0.4.1
Kubernetes	External-Snapshotter	>= 1.0.0, <= 1.0.1
Kubernetes	External-Snapshotter	>= 1.1.0, <= 1.2.1
Redhat	Openshift Container Platform	3.11
Redhat	Openshift Container Platform	4.1
Redhat	Openshift Container Platform	4.2

References

https://access.redhat.com/errata/RHSA-2019:4054Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4096Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4099Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4225Third Party Advisory
https://github.com/kubernetes/kubernetes/issues/85233Mitigation, Third Party Advisory
https://groups.google.com/forum/#%21topic/kubernetes-security-announce/aXiYN0q4uIw
https://security.netapp.com/advisory/ntap-20200810-0003/
https://access.redhat.com/errata/RHSA-2019:4054Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4096Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4099Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4225Third Party Advisory
https://github.com/kubernetes/kubernetes/issues/85233Mitigation, Third Party Advisory
https://groups.google.com/forum/#%21topic/kubernetes-security-announce/aXiYN0q4uIw
https://security.netapp.com/advisory/ntap-20200810-0003/

Timeline

Published: Dec 5, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-11255?

How severe is CVE-2019-11255?

CVE-2019-11255 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.75% probability of exploitation in the next 30 days.

How do I fix CVE-2019-11255?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-11255?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST