# edera

Published articles for edera.

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## Kubernetes User Namespaces Improve Pod Isolation but Do Not Isolate the Shared Kernel

DevFeed: [Kubernetes User Namespaces Improve Pod Isolation but Do Not Isolate the Shared Kernel](<https://devfeed.tech/articles/kubernetes-finally-lands-user-namespace-support-but-shared-kernel-problem-remains-17633.md>)

Original publisher: [Read original article](<https://thenewstack.io/kubernetes-user-namespace-security/>)

Author: Kaylin Trychon

Published: 2026-05-06T14:50:05Z

Content type: opinion

Language: en

Sources: [Kubernetes Overview, News and Trends | The New Stack](<https://devfeed.tech/sources/kubernetes-overview-news-and-trends-the-new-stack.md>)

Topics: [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>), [Security](<https://devfeed.tech/topics/security.md>), [Kernel](<https://devfeed.tech/topics/kernel.md>), [Cloud Native Ecosystem](<https://devfeed.tech/topics/cloud-native-ecosystem.md>), [Containers](<https://devfeed.tech/topics/containers.md>)

Tags: [cloud-native](<https://devfeed.tech/tags/cloud-native.md>), [cloud-native-ecosystem](<https://devfeed.tech/tags/cloud-native-ecosystem.md>), [containers](<https://devfeed.tech/tags/containers.md>), [cves](<https://devfeed.tech/tags/cves.md>), [edera](<https://devfeed.tech/tags/edera.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [post-contributed](<https://devfeed.tech/tags/post-contributed.md>), [security](<https://devfeed.tech/tags/security.md>), [sponsor-edera](<https://devfeed.tech/tags/sponsor-edera.md>), [sponsored-post-contributed](<https://devfeed.tech/tags/sponsored-post-contributed.md>)

### AI overview

Kubernetes user namespaces can reduce the impact of some container escapes by remapping pod root identities to unprivileged host identities. The article argues that this improves isolation but does not address the security limitations of a shared kernel.

### Source excerpt

Kubernetes shipped a long-awaited security feature last week: user namespace support for pods. It may sound like an obscure feature The post Kubernetes finally lands user namespace support, but shared kernel problem remains appeared first on The New Stack.