High severity8.2NVD Advisory· Published Apr 8, 2026· Updated Apr 15, 2026
CVE-2026-39429
CVE-2026-39429
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.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/kcp-dev/kcpGo | >= 0.30.0, < 0.30.3 | 0.30.3 |
github.com/kcp-dev/kcpGo | < 0.29.3 | 0.29.3 |
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
5- github.com/kcp-dev/kcp/security/advisories/GHSA-3j3q-wp9x-585pnvdExploitMitigationVendor AdvisoryWEB
- github.com/advisories/GHSA-3j3q-wp9x-585pghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-39429ghsaADVISORY
- github.com/kcp-dev/kcp/releases/tag/v0.29.3nvdRelease NotesWEB
- github.com/kcp-dev/kcp/releases/tag/v0.30.3nvdRelease NotesWEB
News mentions
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