Security advisory

{
  "id": "d42e6d604025fc48c12e081144c84acefcb24112b61113eba6569a8be16f5be5",
  "url": "https://osv.dev/vulnerability/CVE-2020-36565",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-36565",
    "summary": "Due to improper sanitization of user input on Windows, the static file handler allows for directory traversal, allowing an attacker to read files outside of the target directory that the server has permission to read.",
    "evidence": "osv:CVE-2020-36565",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-36565",
      "aliases": [
        "CVE-2020-36565",
        "GHSA-j453-hm5x-c46w",
        "GO-2021-0051"
      ],
      "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/labstack/echo",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "b0f56eaf969bf5f8a6e4b6727f3f5fc7f44f36a0"
                },
                {
                  "fixed": "4422e3b66b9fd498ed1ae1d0242d660d0ed3faaa"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:labstack:echo:*:*:*:*:*:go:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.2.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "4422e3b66b9fd498ed1ae1d0242d660d0ed3faaa"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.1.17",
            "v4.1.16",
            "v4.1.15",
            "v4.1.14",
            "v4.1.13",
            "v4.1.12",
            "v4.1.11",
            "v4.1.10",
            "v4.1.9",
            "v4.1.8",
            "v4.1.7",
            "v4.1.6",
            "v4.1.5",
            "v4.1.4",
            "v4.1.3",
            "v4.1.2",
            "v4.1.1",
            "v4.1.0",
            "v4.0.0",
            "v3.3.10",
            "v3.3.9",
            "v3.3.8-retag",
            "v3.3.7-retag",
            "v3.3.6-retag",
            "v3.3.5-retag",
            "v3.3.4",
            "3.3.4",
            "v3.3.3",
            "3.3.3",
            "3.3.2",
            "v3.3.1",
            "3.3.1",
            "v3.3.0",
            "3.3.0",
            "v3.2.6",
            "3.2.6",
            "v3.2.5",
            "3.2.5",
            "v3.2.4",
            "3.2.4",
            "v3.2.3",
            "3.2.3",
            "v3.3.2",
            "v3.2.2",
            "3.2.2",
            "v3.2.1",
            "v3.2.0",
            "v3.1.0",
            "v3.1.0-rc.1",
            "v3.0.3",
            "v3.0.2",
            "v3.0.1",
            "v3.0.0",
            "v3.0.0-beta.2",
            "v3.0.0-beta.1",
            "v2.0.2",
            "v2.0.1",
            "v2.0.0",
            "v2.0.0-beta.2",
            "v2.0.0-beta.1",
            "v2.0.0-apha.2",
            "v2.0.0-apha1",
            "v2.0.0-apha.1",
            "2.0.0-alpha",
            "v1.3",
            "v1.2.0",
            "v1.1.0",
            "v1.0.0",
            "v0.0.16",
            "v0.0.15",
            "v0.0.14",
            "v0.0.13",
            "v0.0.12",
            "v0.0.11",
            "v0.0.10",
            "v0.0.9",
            "v0.0.8",
            "v0.0.7",
            "v0.0.6",
            "v0.0.5",
            "v0.0.4",
            "v0.0.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36565.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:22.353390466Z",
      "provider": "osv",
      "references": [
        "https://pkg.go.dev/vuln/GO-2021-0051",
        "https://github.com/labstack/echo/commit/4422e3b66b9fd498ed1ae1d0242d660d0ed3faaa",
        "https://github.com/labstack/echo/pull/1718"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-36565",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385220,
  "published_at": "2022-12-07T17:15:09.91+00:00"
}