Security advisory

{
  "id": "023e040128d07653fc79dcbce8ab4bbefe9d15c3675bbd94380ab72df830e635",
  "url": "https://osv.dev/vulnerability/CVE-2021-41867",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-41867",
    "summary": "An information disclosure vulnerability in OnionShare 2.3 before 2.4 allows remote unauthenticated attackers to retrieve the full list of participants of a non-public OnionShare node via the --chat feature.",
    "evidence": "osv:CVE-2021-41867",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-41867",
      "aliases": [
        "CVE-2021-41867",
        "GHSA-6rvj-pw9w-jcvc",
        "PYSEC-2026-696"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/onionshare/onionshare",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c5fd1cb7103c3ea5c4b7436ea197a4a64f04178b"
                },
                {
                  "fixed": "38d0b9ba398e5ff56909f446dace594ab960fb99"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:onionshare:onionshare:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.3"
                      },
                      {
                        "fixed": "2.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41867.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:59.727701803Z",
      "provider": "osv",
      "references": [
        "https://github.com/onionshare/onionshare/compare/v2.3.3...v2.4",
        "https://www.ihteam.net/advisory/onionshare/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-41867",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386646,
  "published_at": "2021-10-04T14:15:07.693+00:00"
}