Improper Access Control in Onionshare

{
  "id": "caa0fd6c1bac43d33456a688f524c3c6a98d22e0fc2422560aac799c533bad14",
  "url": "https://osv.dev/vulnerability/CVE-2022-21691",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Improper Access Control in Onionshare",
    "summary": "OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. In affected versions chat participants can spoof their channel leave message, tricking others into assuming they left the chatroom.",
    "evidence": "osv:CVE-2022-21691",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2022-21691",
      "aliases": [
        "CVE-2022-21691",
        "GHSA-w9m4-7w72-r766",
        "PYSEC-2022-42"
      ],
      "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/onionshare/onionshare",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6642c25959f14daeb4a572798ccf4acd765d5795"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.5"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "6642c25959f14daeb4a572798ccf4acd765d5795"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.5"
                  },
                  {
                    "cpe": "cpe:2.3:a:onionshare:onionshare:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.4.dev1",
            "v2.3.2",
            "v2.3.2.dev1",
            "v2.3.1",
            "v2.3",
            "v2.3.dev2",
            "v2.3.dev1",
            "v2.2.dev1",
            "v2.1.dev1",
            "v2.0.dev3",
            "v2.0.dev2",
            "v1.2",
            "v1.1",
            "v1.1.dev2",
            "v1.1.dev1",
            "v1.0",
            "v1.0dev1",
            "v0.9.2",
            "v0.9.1",
            "v0.9",
            "v0.8.1",
            "0.8",
            "0.7.1",
            "0.7",
            "0.6",
            "0.5",
            "0.4",
            "0.3",
            "0.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-21691.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:36.461138589Z",
      "provider": "osv",
      "references": [
        "https://github.com/onionshare/onionshare/releases/tag/v2.5",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21691.json",
        "https://github.com/onionshare/onionshare/security/advisories/GHSA-w9m4-7w72-r766",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-21691"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-306"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21691.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-21691",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 503712,
  "published_at": "2022-01-18T22:00:12+00:00"
}