Security advisory

{
  "id": "b5edff4427fc8e331834105505ec356e3b3557ebaf2b6db874f7c3145bb0f411",
  "url": "https://osv.dev/vulnerability/CVE-2021-23664",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-23664",
    "summary": "The package @isomorphic-git/cors-proxy before 2.7.1 are vulnerable to Server-side Request Forgery (SSRF) due to missing sanitization and validation of the redirection action in middleware.js.",
    "evidence": "osv:CVE-2021-23664",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-23664",
      "aliases": [
        "CVE-2021-23664",
        "GHSA-v82v-rq72-phq9",
        "SNYK-JS-ISOMORPHICGITCORSPROXY-1734788"
      ],
      "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/isomorphic-git/cors-proxy",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1b1c91e71d946544d97ccc7cf0ac62b859e03311"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:isomorphic-git:cors-proxy:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.7.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "1b1c91e71d946544d97ccc7cf0ac62b859e03311"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.7.0",
            "v2.6.1",
            "v2.6.0",
            "v2.5.0",
            "v2.4.0",
            "v2.3.0",
            "v2.2.3",
            "v2.2.2",
            "v2.2.1",
            "v2.2.0",
            "v2.1.0",
            "v2.0.2",
            "v2.0.1",
            "v2.0.0",
            "v1.0.0",
            "v0.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-23664.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:32.907687737Z",
      "provider": "osv",
      "references": [
        "https://github.com/isomorphic-git/cors-proxy/commit/1b1c91e71d946544d97ccc7cf0ac62b859e03311",
        "https://snyk.io/vuln/SNYK-JS-ISOMORPHICGITCORSPROXY-1734788"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-23664",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385551,
  "published_at": "2022-01-21T20:15:08.07+00:00"
}