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.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-3j3q-wp9x-585p kcp's cache server is accessible without authentication or authorization checks
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 08 Apr 2026 20:30:00 +0000

Type Values Removed Values Added
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.
Title kcp's cache server is accessible without authentication or authorization checks
Weaknesses CWE-302
CWE-862
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-08T20:16:04.015Z

Reserved: 2026-04-07T00:23:30.596Z

Link: CVE-2026-39429

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-08T21:16:59.313

Modified: 2026-04-08T21:26:13.410

Link: CVE-2026-39429

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses