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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| kcp-dev | kcp | >= 0.30.0, < 0.30.3, < 0.29.3 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/kcp-dev/kcp | >= 0.30.0, < 0.30.3 | 0.30.3 | GHSA-3j3q-wp9x-585p |
| Go | github.com/kcp-dev/kcp | < 0.29.3 | 0.29.3 | GHSA-3j3q-wp9x-585p |
| Go | github.com/kcp-dev/kcp | < 0.29.3 · >= 0.30.0, < 0.30.3 | 0.29.3, 0.30.3 | GO-2026-5088 |
Advisories 1
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026