CVE-2026-39429

HIGH

8.2

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.

CVE Details

CVSS v3.1 Score8.2

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/8/2026

Last Modified4/8/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-302CWE-862

References

https://github.com/kcp-dev/kcp/releases/tag/v0.29.3(security-advisories@github.com)

https://github.com/kcp-dev/kcp/releases/tag/v0.30.3(security-advisories@github.com)

https://github.com/kcp-dev/kcp/security/advisories/GHSA-3j3q-wp9x-585p(security-advisories@github.com)

IOC Correlations

No correlations recorded

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