# Cilium vs Red Hat OpenShift Service Mesh

**Leader by vioscaleAI score:** Cilium

| Attribute | Cilium | Red Hat OpenShift Service Mesh |
|---|---|---|
| **vioscaleAI score** | 55.8 (54% (medium)) | 50.3 (26% (low)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 103 | - |
| adoption.github_stars | 25,603 | - |
| content.faq | `[{"answer":"A cloud-native networking and security platform that uses eBPF to provide networking, observability, and security capabilities. Built for Kubernetes and cloud infrastructure with integrated observability via Hubble. It is indexed under Service Mesh.","source":"https://cilium.io","question":"What is Cilium?","confidence":0.6},{"answer":"Cilium is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://cilium.io","question":"Is Cilium free to use?","confidence":0.6},{"answer":"Cilium supports Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://cilium.io","question":"What platforms does Cilium support?","confidence":0.6},{"answer":"Yes. Cilium can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://cilium.io","question":"Can Cilium be self-hosted?","confidence":0.6},{"answer":"We have confirmed 3 integrations for Cilium, including SPIRE, Envoy and Prometheus. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://cilium.io","question":"What does Cilium integrate with?","confidence":0.6},{"answer":"Yes. Cilium is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/cilium/cilium","question":"Is Cilium open source?","confidence":0.95}]` | `[{"answer":"Red Hat OpenShift Service Mesh supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.redhat.com/en/technologies/cloud-computing/openshift/what-is-openshift-service-mesh","question":"What platforms does Red Hat OpenShift Service Mesh support?","confidence":0.6},{"answer":"Yes. Red Hat OpenShift Service Mesh can be deployed cloud / SaaS, on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.redhat.com/en/technologies/cloud-computing/openshift/what-is-openshift-service-mesh","question":"Can Red Hat OpenShift Service Mesh be self-hosted?","confidence":0.6},{"answer":"We have confirmed 8 integrations for Red Hat OpenShift Service Mesh, including Istio, Envoy, Kiali, Red Hat Connectivity Link, Red Hat OpenShift Observability, cert-manager Operator for Red Hat OpenShift, Red Hat OpenShift Gitops and Red Hat OpenShift Virtualization. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.redhat.com/en/technologies/cloud-computing/openshift/what-is-openshift-service-mesh","question":"What does Red Hat OpenShift Service Mesh integrate with?","confidence":0.6}]` |
| deployment.options | `{"cloud":true,"hybrid":true,"self_hosted":true}` | `{"cloud":true,"on_prem":true,"self_hosted":true}` |
| description.long | Cilium is an open-source networking layer for Kubernetes that uses eBPF to provide container-to-container communication, load balancing, network policies, multi-cluster connectivity, and deep observability across single or multiple clusters. | Red Hat OpenShift Service Mesh is a management layer built on Istio that enables secure communication between microservices and provides visibility into their interactions. It includes built-in traffic management, mutual TLS encryption for zero-trust security, and support for running a single mesh across multiple Kubernetes clusters. |
| features.capabilities | `{"proxy":"envoy","data_plane":"sidecarless_ebpf","multicluster":true,"cncf_maturity":"graduated","spiffe_identity":true,"traffic_splitting":true,"gateway_api_support":true,"built_in_observability":true}` | `{"proxy":"envoy","data_plane":"sidecar","multicluster":true,"automatic_mtls":true,"traffic_splitting":true,"commercial_support":true,"built_in_observability":true}` |
| integrations.count | 3 | 8 |
| integrations.list | `[{"name":"SPIRE","native":false,"category":"identity","direction":"inbound"},{"name":"Envoy","native":false,"category":"proxy"},{"name":"Prometheus","native":false,"category":"monitoring","direction":"outbound"}]` | `[{"name":"Istio"},{"name":"Envoy"},{"name":"Kiali"},{"name":"Red Hat Connectivity Link"},{"name":"Red Hat OpenShift Observability"},{"name":"cert-manager Operator for Red Hat OpenShift"},{"name":"Red Hat OpenShift Gitops"},{"name":"Red Hat OpenShift Virtualization"}]` |
| language.primary | Go | - |
| license.spdx | Apache-2.0 | - |
| platform.support | `{"cli":true,"linux":true}` | `{"cli":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://cilium.io","retrievedAt":"2026-08-13T09:27:47.184Z"}` | - |
| pricing.free_tier | yes | - |
| pricing.model | open_source | commercial |
| pricing.price_level | free | - |
| pricing.transparent | yes | - |
| release.cadence_days | 5 | - |
| release.history | `[{"url":"https://github.com/cilium/cilium/releases/tag/v1.21.0-pre.3","date":"2026-10-02T19:04:57Z","type":"prerelease","version":"v1.21.0-pre.3"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.20.2","date":"2026-09-16T01:53:22Z","type":"stable","version":"v1.20.2"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.19.8","date":"2026-09-16T01:53:16Z","type":"stable","version":"v1.19.8"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.18.14","date":"2026-09-16T01:53:07Z","type":"stable","version":"v1.18.14"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.21.0-pre.2","date":"2026-09-09T11:50:23Z","type":"prerelease","version":"v1.21.0-pre.2"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.20.1","date":"2026-08-18T10:36:16Z","type":"stable","version":"v1.20.1"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.19.7","date":"2026-08-18T10:35:54Z","type":"stable","version":"v1.19.7"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.18.13","date":"2026-08-18T10:35:40Z","type":"stable","version":"v1.18.13"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.21.0-pre.0","date":"2026-08-03T19:58:45Z","type":"prerelease","version":"v1.21.0-pre.0"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.20.0","date":"2026-07-29T15:00:29Z","type":"stable","version":"v1.20.0"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.20.0-rc.1","date":"2026-07-21T23:28:11Z","type":"prerelease","version":"v1.20.0-rc.1"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.19.6","date":"2026-07-16T22:52:21Z","type":"stable","version":"v1.19.6"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.18.12","date":"2026-07-16T22:47:50Z","type":"stable","version":"v1.18.12"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.17.18","date":"2026-07-16T22:47:26Z","type":"stable","version":"v1.17.18"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.20.0-rc.0","date":"2026-07-14T02:52:53Z","type":"prerelease","version":"v1.20.0-rc.0"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.20.0-pre.4","date":"2026-07-03T20:50:44Z","type":"prerelease","version":"v1.20.0-pre.4"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.19.5","date":"2026-06-16T12:25:41Z","type":"stable","version":"v1.19.5"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.18.11","date":"2026-06-16T12:22:23Z","type":"stable","version":"v1.18.11"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.17.17","date":"2026-06-16T12:22:05Z","type":"stable","version":"v1.17.17"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.20.0-pre.3","date":"2026-06-02T00:41:32Z","type":"prerelease","version":"v1.20.0-pre.3"}]` | - |
| reliability.status_page | - | yes |
| security.disclosure_policy | - | yes |
| security.scorecard | 5.8 | - |
| security.vulnerabilities | `{"count":39,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fcilium%2Fcilium&per_page=100","last_12m":8,"max_severity":"CRITICAL"}` | - |

## Capabilities (Service Mesh)

| Capability | Cilium | Red Hat OpenShift Service Mesh |
|---|:--:|:--:|
| **Architecture** |  |  |
| Data plane | Sidecarless (eBPF) | Sidecar |
| Proxy | Envoy | Envoy |
| **Security** |  |  |
| Automatic mutual TLS | - | ✓ |
| SPIFFE / SPIRE identity | ✓ | - |
| **Traffic** |  |  |
| Traffic splitting / canary | ✓ | ✓ |
| Fault injection / resilience | - | - |
| **Scale** |  |  |
| Multi-cluster federation | ✓ | ✓ |
| **Portability** |  |  |
| VM support (beyond Kubernetes) | - | - |
| **Observability** |  |  |
| Built-in observability | ✓ | ✓ |
| **Standards** |  |  |
| Gateway API / GAMMA support | ✓ | - |
| **Extensibility** |  |  |
| WASM extensibility | - | - |
| **Compliance** |  |  |
| FIPS mode | - | - |
| **Ecosystem** |  |  |
| CNCF maturity | Graduated | - |
| **Ops** |  |  |
| Commercial support / enterprise edition | - | ✓ |

*Source: vioscaleAI. Generated 2026-10-16T19:06:38.442Z. "-" = undocumented, not absent.*