Code exec via yaml parsing
Priority LOW 30CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-502.
Summary
Loading specially-crafted yaml with the Kubernetes Java Client library can lead to code execution.
Why it matters now
EPSS 0.00473 41st percentileScored 2026-11-07
Fix Fixed io.kubernetes:client-java (Maven): 11.0.1
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 |
|---|---|---|---|---|---|
| Kubernetes | Kubernetes Java Client | v12.0.0; up to v11.0.1; up to v10.0.1; up to v9.0.2 | — | No fix listed | CNA |
| — | io.kubernetes:client-java (Maven) | before 11.0.1 | 11.0.1 | Patch available | GHSA-m8wh-mqgf-rr8g |
- Kubernetes Java Client VendorKubernetes Affected v12.0.0; up to v11.0.1; up to v10.0.1; up to v9.0.2 Fixed in — No fix listed CNA
- io.kubernetes:client-java (Maven) Vendor— Affected before 11.0.1 Fixed in 11.0.1 Patch available GHSA-m8wh-mqgf-rr8g
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:kubernetes:java:*:*:*:*:*:*:*:* | up to 9.0.2; 10.0.0 – 10.0.1; 11.0.0 to before 11.0.1 | Vulnerable | Kubernetes |
- cpe:2.3:a:kubernetes:java:*:*:*:*:*:*:*:* Versions up to 9.0.2; 10.0.0 – 10.0.1; 11.0.0 to before 11.0.1 Vulnerable ·Kubernetes
Remediation
- Fix · GHSA-m8wh-mqgf-rr8g io.kubernetes:client-java (Maven) Fixed in 11.0.1 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Decision Manager 7
- Red Hat Fuse 7
- Red Hat Integration Camel K 1
- Red Hat JBoss Fuse 6
- Red Hat Process Automation 7
Timeline
- 2026-10-02 Threatist record created from CVE-2021-25738
- 2026-10-03 Alias added: GHSA-m8wh-mqgf-rr8g
References
More Kubernetes Java vulnerabilities
- TI-2020-06868 Kubernetes Java client libraries unvalidated path traversal in Copy implementation CVSS 3.1CRITICAL 9.1
Sources
- CVE-2021-25738 · CVE Program
- CVE-2021-25738 · NVD
- FIRST EPSS
- GHSA-m8wh-mqgf-rr8g · GitHub Advisory Database · CC BY 4.0
- CVE-2021-25738 · 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