Security advisory

{
  "id": "f727e5b40025af910d8696db6a7e012bfc689ad052e575c4fb9ce10e08200feb",
  "url": "https://osv.dev/vulnerability/CVE-2021-20306",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-20306",
    "summary": "A flaw was found in the BPMN editor in version jBPM 7.51.0.Final. Any authenticated user from any project can see the name of Ruleflow Groups from other projects, despite the user not having access to those projects. The highest threat from this vulnerability is to confidentiality.",
    "evidence": "osv:CVE-2021-20306",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-20306",
      "aliases": [
        "CVE-2021-20306"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/kiegroup/jbpm",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0a26473cabfd243d6cea2bbc09e5295e72749449"
                },
                {
                  "last_affected": "0a26473cabfd243d6cea2bbc09e5295e72749449"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:redhat:jbpm:7.51.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.51.0"
                      },
                      {
                        "last_affected": "7.51.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "7.51.0",
            "7.51.0.Final"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20306.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/kiegroup/jbpm-wb",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4ea583add41e3a876e2d1383e36aa2d7b44f2f22"
                },
                {
                  "last_affected": "4ea583add41e3a876e2d1383e36aa2d7b44f2f22"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:redhat:jbpm:7.51.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.51.0"
                      },
                      {
                        "last_affected": "7.51.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "7.51.0",
            "7.51.0.Final"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20306.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:41.971161392Z",
      "provider": "osv",
      "references": [
        "https://bugzilla.redhat.com/show_bug.cgi?id=1946213"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:redhat:descision_manager:7.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:descision_manager",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "7.0"
                  },
                  {
                    "last_affected": "7.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:redhat:process_automation:7.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:process_automation",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "7.0"
                  },
                  {
                    "last_affected": "7.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-20306",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435253,
  "published_at": "2021-06-01T14:15:08.56+00:00"
}