Security advisory

{
  "id": "748a7853333ca1a3225ac672e4fe41dec807e0af41610dbe0d7e86ca9f05a2bf",
  "url": "https://osv.dev/vulnerability/CVE-2021-31780",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-31780",
    "summary": "In app/Model/MispObject.php in MISP 2.4.141, an incorrect sharing group association could lead to information disclosure on an event edit. When an object has a sharing group associated with an event edit, the sharing group object is ignored and instead the passed local ID is reused.",
    "evidence": "osv:CVE-2021-31780",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-31780",
      "aliases": [
        "CVE-2021-31780"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/misp/misp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "92f2631c44e8f86924e51ec2e7413dd8e559c08d"
                },
                {
                  "last_affected": "92f2631c44e8f86924e51ec2e7413dd8e559c08d"
                },
                {
                  "fixed": "a0f08501d2850025892e703f40fb1570c7995478"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:misp-project:misp:2.4.141:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.141"
                      },
                      {
                        "last_affected": "2.4.141"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "a0f08501d2850025892e703f40fb1570c7995478"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.4.141",
            "v2.4.141"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-31780.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:40.735996323Z",
      "provider": "osv",
      "references": [
        "https://github.com/MISP/MISP/commit/a0f08501d2850025892e703f40fb1570c7995478"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-31780",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385872,
  "published_at": "2021-04-23T20:15:08.027+00:00"
}