Spring Security Authorization Server Dynamic Client Registration endpoints perform insufficient validation of client metadata

{
  "id": "4f7bfffa99e467a9098eac5c8e80c5a6a5863eda9977745d2fbfbcef5af60992",
  "url": "https://osv.dev/vulnerability/CVE-2026-22752",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Spring Security Authorization Server Dynamic Client Registration endpoints perform insufficient validation of client metadata",
    "summary": "Authentication bypass by primary weakness vulnerability in Spring Security Spring Authorization Server. This issue affects Spring Authorization Server: from 7.0.0 through 7.0.4, from 1.5.0 through 1.5.6, from 1.4.0 through 1.4.9, from 1.3.0 through 1.3.10.",
    "evidence": "osv:CVE-2026-22752",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-22752",
      "aliases": [
        "CVE-2026-22752"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/spring-attic/spring-authorization-server",
              "type": "GIT",
              "events": [
                {
                  "introduced": "ebd3c3c9bd0bf254a0fafed7e1df55e5a90d9ca1"
                },
                {
                  "fixed": "984bb7d47a8c33aea064bef3b013c714aa881559"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:broadcom:spring_authorization_server:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.5.0"
                      },
                      {
                        "fixed": "1.5.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.5.6",
            "1.5.5",
            "1.5.4",
            "1.5.3",
            "1.5.2",
            "1.5.1",
            "1.5.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-22752.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.473439462Z",
      "provider": "osv",
      "references": [
        "https://spring.io/security/cve-2026-22752",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22752.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-22752"
      ],
      "provider_metadata": {
        "cna_assigner": "vmware",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "7.0.0"
                  },
                  {
                    "last_affected": "7.0.4"
                  },
                  {
                    "introduced": "1.5.0"
                  },
                  {
                    "last_affected": "1.5.6"
                  },
                  {
                    "introduced": "1.4.0"
                  },
                  {
                    "last_affected": "1.4.9"
                  },
                  {
                    "introduced": "1.3.0"
                  },
                  {
                    "last_affected": "1.3.10"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22752.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-22752",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497382,
  "published_at": "2026-07-16T08:40:23.009+00:00"
}