Description
kcp is a Kubernetes-like control plane for form-factors and use-cases beyond Kubernetes and container workloads. Prior to 0.30.3 and 0.29.3, the cache server is directly exposed by the root shard and has no authentication or authorization in place. This allows anyone who can access the root shard to read and write to the cache server. This vulnerability is fixed in 0.30.3 and 0.29.3.
Metrics
CVSS 3.1 9.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| kcp-dev | kcp | >= 0.30.0, < 0.30.3; < 0.29.3 |
References
- https://github.com/kcp-dev/kcp/releases/tag/v0.29.3Release Notes
- https://github.com/kcp-dev/kcp/releases/tag/v0.30.3Release Notes
- https://github.com/kcp-dev/kcp/security/advisories/GHSA-3j3q-wp9x-585pExploit, Mitigation, Vendor Advisory
Timeline
- Published
- Apr 8, 2026
- Last modified
- Jul 24, 2026
- NVD status
- Analyzed