CVE-2024-9486
VM images built with Image Builder and Proxmox provider use default credentials
- Published
- Updated
- Reserved
- Assigned by
- kubernetes
Description
A security issue was discovered in the Kubernetes Image Builder versions <= v0.1.37 where default credentials are enabled during the image build process. Virtual machine images built using the Proxmox provider do not disable these default credentials, and nodes using the resulting images may be accessible via these default credentials. The credentials can be used to gain root access. Kubernetes clusters are only affected if their nodes use VM images created via the Image Builder project with its Proxmox provider.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| kubernetesCNA (assigner) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.2% · top 17% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
- affected ≤ 0.1.37
- unaffected 0.1.38
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/kubernetes-sigs/image-builderGHSA-9224-ggvw-wh7v (opens in a new tab)
What to do
Solution: Rebuild any affected images using a fixed version of Image Builder. Re-deploy the fixed images to any affected VMs.
Workaround: Prior to upgrading, this vulnerability can be mitigated by disabling the builder account on affected VMs: usermod -L builder
References (3)
- https://github.com/kubernetes/kubernetes/issues/128006 (opens in a new tab)vendor-advisoryissue-tracking
- https://github.com/kubernetes-sigs/image-builder/pull/1595 (opens in a new tab)patch
- https://groups.google.com/g/kubernetes-security-announce/c/UKJG-oZogfA/m/Lu1hcnHmAQAJ (opens in a new tab)mailing-list
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-9224-ggvw-wh7v (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-2024-9486)Record last updated .