{
  "schema_version": "1.3.1",
  "id": "GO-2020-0017",
  "modified": "0001-01-01T00:00:00Z",
  "published": "2021-04-14T20:04:52Z",
  "aliases": [
    "CVE-2020-26160",
    "GHSA-w73w-5m7g-f7qc"
  ],
  "summary": "Authorization bypass in github.com/dgrijalva/jwt-go",
  "details": "If a JWT contains an audience claim with an array of strings, rather than a single string, and MapClaims.VerifyAudience is called with req set to false, then audience verification will be bypassed, allowing an invalid set of audiences to be provided.",
  "affected": [
    {
      "package": {
        "name": "github.com/dgrijalva/jwt-go",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0.0.0-20150717181359-44718f8a89b0"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "imports": [
          {
            "path": "github.com/dgrijalva/jwt-go",
            "symbols": [
              "MapClaims.VerifyAudience"
            ]
          }
        ]
      }
    },
    {
      "package": {
        "name": "github.com/dgrijalva/jwt-go/v4",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.0.0-preview1"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "imports": [
          {
            "path": "github.com/dgrijalva/jwt-go/v4",
            "symbols": [
              "MapClaims.VerifyAudience"
            ]
          }
        ]
      }
    }
  ],
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/dgrijalva/jwt-go/commit/ec0a89a131e3e8567adcb21254a5cd20a70ea4ab"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dgrijalva/jwt-go/issues/422"
    }
  ],
  "credits": [
    {
      "name": "@christopher-wong"
    }
  ],
  "database_specific": {
    "url": "https://pkg.go.dev/vuln/GO-2020-0017"
  }
}