CVE-2019-11255
Kubernetes CSI volume snapshot, cloning and resizing features can result in unauthorized volume data access or mutation
- 4.8MediumCVSS base score
- 2.0%Exploitation in 30 daysEPSS · top 19% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By kubernetes
- 8 months later
· 8 months later
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| kubernetesCNA (assigner) | 3.1 | Medium4.8 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N |
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 2.0% · top 19% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.8.
Affected products
Kubernetes · kubernetes-csi external-provisioner
- affected prior to 1.0.2
- affected 1.1
- affected prior to 1.2.2
- affected prior to 1.3.1
- affected v1.14 – < prior to 0.4.3
Kubernetes · kubernetes-csi external-snapshotter
- affected prior to 0.4.2
- affected prior to 1.0.2
- affected 1.1
- affected prior to 1.2.2
Kubernetes · kubernetes-csi external-resizer
- affected 0.1
- affected 0.2
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/kubernetes-csi/external-provisionerGHSA-f4w6-3rh6-6q4q (opens in a new tab)
- Gogithub.com/kubernetes-csi/external-resizerGHSA-f4w6-3rh6-6q4q (opens in a new tab)
- Gogithub.com/kubernetes-csi/external-snapshotter/v6GHSA-f4w6-3rh6-6q4q (opens in a new tab)
What to do
Workaround: Kubernetes feature gates can be disabled and RBAC permissions revoked from impacted CSI drivers, following instructions in https://github.com/kubernetes/kubernetes/issues/85233
References
References7
- https://github.com/kubernetes/kubernetes/issues/85233 (opens in a new tab)x_refsource_CONFIRMx_transferred
- Security release of kubernetes-csi sidecars - CVE-2019-11255 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2019:4099 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:4096 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:4054 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:4225 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://security.netapp.com/advisory/ntap-20200810-0003/ (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-3689 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-f4w6-3rh6-6q4q (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2019-11255)Record last updated .