CVE-2020-8554
6.3 MEDIUMKubernetes API server in all versions allow an attacker who is able to create a ClusterIP service and set the spec.externalIPs field, to ...
Published: 2021-01-21 · Last updated: 2026-06-01
Severity and scoring
- CVSS
- 6.3 MEDIUM
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- CWE
- CWE-283
Affected products
| Vendor | Product |
|---|---|
| kubernetes | communications_cloud_native_core_network_slice_selection_function, communications_cloud_native_core_policy, communications_cloud_native_core_service_communication_proxy |
| oracle | communications_cloud_native_core_network_slice_selection_function, communications_cloud_native_core_policy, communications_cloud_native_core_service_communication_proxy |
Description
Kubernetes API server in all versions allow an attacker who is able to create a ClusterIP service and set the spec.externalIPs field, to intercept traffic to that IP address. Additionally, an attacker who is able to patch the status (which is considered a privileged operation and should not typically be granted to users) of a LoadBalancer service can set the status.loadBalancer.ingress.ip to similar effect.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2020-8554
- [Exploit reference]https://github.com/kubernetes/kubernetes/issues/97076
- [Other]https://groups.google.com/g/kubernetes-security-announce/c/iZWsF9nbKE8
- [Other]https://kubernetes.io/blog/2026/05/26/reconciling-unfixed-kubernetes-cves/
- [Other]https://lists.apache.org/thread.html/r0c76b3d0be348f788cd947054141de0229af00c540564711e828fd40%40%3Ccommits.druid.apache.org%3E
- [Other]https://lists.apache.org/thread.html/r1975078e44d96f2a199aa90aa874b57a202eaf7f25f2fde6d1c44942%40%3Ccommits.druid.apache.org%3E
- [Other]https://lists.apache.org/thread.html/rcafa485d63550657f068775801aeb706b7a07140a8ebbdef822b3bb3%40%3Ccommits.druid.apache.org%3E
- [Other]https://lists.apache.org/thread.html/rdb223e1b82e3d7d8e4eaddce8dd1ab87252e3935cc41c859f49767b6%40%3Ccommits.druid.apache.org%3E
- [Patch]https://www.oracle.com//security-alerts/cpujul2021.html
- [Patch]https://www.oracle.com/security-alerts/cpuapr2022.html
- [Patch]https://www.oracle.com/security-alerts/cpujan2022.html
- [Exploit reference]https://github.com/kubernetes/kubernetes/issues/97076
- [Other]https://groups.google.com/g/kubernetes-security-announce/c/iZWsF9nbKE8
- [Other]https://lists.apache.org/thread.html/r0c76b3d0be348f788cd947054141de0229af00c540564711e828fd40%40%3Ccommits.druid.apache.org%3E
- [Other]https://lists.apache.org/thread.html/r1975078e44d96f2a199aa90aa874b57a202eaf7f25f2fde6d1c44942%40%3Ccommits.druid.apache.org%3E
- [Other]https://lists.apache.org/thread.html/rcafa485d63550657f068775801aeb706b7a07140a8ebbdef822b3bb3%40%3Ccommits.druid.apache.org%3E
- [Other]https://lists.apache.org/thread.html/rdb223e1b82e3d7d8e4eaddce8dd1ab87252e3935cc41c859f49767b6%40%3Ccommits.druid.apache.org%3E
- [Patch]https://www.oracle.com//security-alerts/cpujul2021.html
- [Patch]https://www.oracle.com/security-alerts/cpuapr2022.html
- [Patch]https://www.oracle.com/security-alerts/cpujan2022.html
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- CVE-2026-46841 — Vulnerability in Oracle REST Data Services (component: General) (5.3 MEDIUM)
- CVE-2026-46840 — Vulnerability in Oracle REST Data Services (component: Backend-as-a-Service) (10.0 CRITICAL)
- CVE-2026-46839 — Vulnerability in Oracle REST Data Services (component: Core) (9.9 CRITICAL)
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