Search criteria Use this form to refine search results.
Full-text search supports keyword queries with ranking and filtering.
You can combine vendor, product, and sources to narrow results.
Enable “Apply ordering” to sort by date instead of relevance.

1 vulnerability by kcp

CVE-2026-39429 (GCVE-0-2026-39429)

Vulnerability from cvelistv5 – Published: 2026-04-08 20:16 – Updated: 2026-04-10 20:49
VLAI?
Title
kcp's cache server is accessible without authentication or authorization checks
Summary
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.
CWE
  • CWE-862 - Missing Authorization
  • CWE-302 - Authentication Bypass by Assumed-Immutable Data
Assigner
Impacted products
Vendor Product Version
kcp-dev kcp Affected: >= 0.30.0, < 0.30.3
Affected: < 0.29.3
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-39429",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-10T20:49:20.729406Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-10T20:49:31.041Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "kcp",
          "vendor": "kcp-dev",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 0.30.0, \u003c 0.30.3"
            },
            {
              "status": "affected",
              "version": "\u003c 0.29.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862: Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-302",
              "description": "CWE-302: Authentication Bypass by Assumed-Immutable Data",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-08T20:16:04.015Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/kcp-dev/kcp/security/advisories/GHSA-3j3q-wp9x-585p",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/kcp-dev/kcp/security/advisories/GHSA-3j3q-wp9x-585p"
        },
        {
          "name": "https://github.com/kcp-dev/kcp/releases/tag/v0.29.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kcp-dev/kcp/releases/tag/v0.29.3"
        },
        {
          "name": "https://github.com/kcp-dev/kcp/releases/tag/v0.30.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kcp-dev/kcp/releases/tag/v0.30.3"
        }
      ],
      "source": {
        "advisory": "GHSA-3j3q-wp9x-585p",
        "discovery": "UNKNOWN"
      },
      "title": "kcp\u0027s cache server is accessible without authentication or authorization checks"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-39429",
    "datePublished": "2026-04-08T20:16:04.015Z",
    "dateReserved": "2026-04-07T00:23:30.596Z",
    "dateUpdated": "2026-04-10T20:49:31.041Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}