{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.7.0"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "17392d73df4e9aa19a2486446921cfd307041dec"
            },
            {
              "fixed": "6f1039bdd3328a84d6700031bc0ce4714020e2f9"
            }
          ],
          "repo": "https://github.com/rybbit-io/rybbit",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-942"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82287.json"
  },
  "details": "Rybbit before 2.7.0 contains a CORS misconfiguration vulnerability that allows attackers to bypass origin restrictions by reflecting any request origin in Access-Control-Allow-Origin responses while credentials are enabled. Attackers can issue credentialed cross-origin requests from any website to read analytics data, account information, and perform authenticated state-changing operations as the victim user.",
  "id": "CVE-2026-82287",
  "modified": "2026-09-02T03:30:37.812233796Z",
  "published": "2026-08-28T16:19:05.231Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82287.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82287"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/rybbit-reflects-any-origin-in-cors-responses-while-allowing-credentials"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rybbit-io/rybbit/issues/1038"
    },
    {
      "type": "FIX",
      "url": "https://github.com/rybbit-io/rybbit/commit/6f1039bdd3328a84d6700031bc0ce4714020e2f9"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rybbit-io/rybbit"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/rybbit-io/rybbit/blob/v2.6.0/server/src/index.ts"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Rybbit Reflects Any Origin in CORS Responses While Allowing Credentials"
}