Kubernetes CRI-O version prior to 1.9 contains a Privilege Context Switching Error…
Priority MEDIUM 42CWE-269Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-269.
Summary
Kubernetes CRI-O version prior to 1.9 contains a Privilege Context Switching Error (CWE-270) vulnerability in the handling of ambient capabilities that can result in containers running with elevated privileges, allowing users abilities they should not have. This attack appears to be exploitable via container execution. This vulnerability appears to have been fixed in 1.9.
Why it matters now
EPSS 0.0197 80th percentileScored 2026-11-07
Fix Fixed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:kubernetes:cri-o:*:*:*:*:*:*:*:* | before 1.9.0 | Vulnerable | Kubernetes |
- cpe:2.3:a:kubernetes:cri-o:*:*:*:*:*:*:*:* Versions before 1.9.0 Vulnerable ·Kubernetes
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 3.9 | Fixed | — |
Not affected: 3 products
- Red Hat OpenShift Container Platform 3.10
- Red Hat OpenShift Container Platform 3.11
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2018-1000400
- 2026-10-03 Alias added: GHSA-339v-9xv2-qg2w
References
More Kubernetes Cri-o vulnerabilities
- TI-2022-02765 Improper access control in cri-o CVSS 3.1HIGH 7.1
- TI-2022-00719 Code injection in CRI-O CVSS 3.1HIGH 8.8
- TI-2024-04785 Cri-o: malicious container can create symlink on host CVSS 3.1HIGH 8.1
- TI-2022-01574 Uncontrolled resource consumption in CRI-O CVSS 3.1HIGH 7.5
- TI-2022-03955 Cri-o: /etc/passwd tampering privesc CVSS 3.1HIGH 7.8
- TI-2022-10633 Incorrect default permissions in cri-o CVSS 3.1MEDIUM 5.3
Sources
- CVE-2018-1000400 · CVE Program
- CVE-2018-1000400 · NVD
- FIRST EPSS
- GHSA-339v-9xv2-qg2w · GitHub Advisory Database · CC BY 4.0
- CVE-2018-1000400 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences