CVE-2022-3294
Node address isn't always verified when proxying
- Published
- Updated
- Reserved
- Assigned by
- kubernetes
Description
Users may have access to secure endpoints in the control plane network. Kubernetes clusters are only affected if an untrusted user can modify Node objects and send proxy requests to them. Kubernetes supports node proxying, which allows clients of kube-apiserver to access endpoints of a Kubelet to establish connections to Pods, retrieve container logs, and more. While Kubernetes already validates the proxying address for Nodes, a bug in kube-apiserver made it possible to bypass this validation. Bypassing this validation could allow authenticated requests destined for Nodes to to the API server's private network.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| kubernetesCNA (assigner) | 3.1 | Medium6.6 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.6% · top 24% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.6.
Weakness
Affected products
- affected unspecified – ≤ v1.25.3
- affected unspecified – ≤ v1.24.7
- affected unspecified – ≤ v1.23.13
- affected unspecified – ≤ v1.22.15
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/kubernetes/kubernetesGHSA-jh36-q97c-9928 (opens in a new tab)
What to do
Workaround: Configuring an egress proxy for egress to the cluster network can mitigate this vulnerability
References (3)
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)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-jh36-q97c-9928 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-3294)Record last updated .