{
  "GSD": {
    "alias": "CVE-2020-26291",
    "description": "URI.js is a javascript URL mutation library (npm package urijs). In URI.js before version 1.19.4, the hostname can be spoofed by using a backslash (`\\`) character followed by an at (`@`) character. If the hostname is used in security decisions, the decision may be incorrect. Depending on library usage and attacker intent, impacts may include allow/block list bypasses, SSRF attacks, open redirects, or other undesired behavior. For example the URL `https://expected-example.com\\@observed-example.com` will incorrectly return `observed-example.com` if using an affected version. Patched versions correctly return `expected-example.com`. Patched versions match the behavior of other parsers which implement the WHATWG URL specification, including web browsers and Node\u0027s built-in URL class. Version 1.19.4 is patched against all known payload variants. Version 1.19.3 has a partial patch but is still vulnerable to a payload variant.]",
    "id": "GSD-2020-26291",
    "references": [
      "https://access.redhat.com/errata/RHSA-2021:3917"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-26291"
      ],
      "details": "URI.js is a javascript URL mutation library (npm package urijs). In URI.js before version 1.19.4, the hostname can be spoofed by using a backslash (`\\`) character followed by an at (`@`) character. If the hostname is used in security decisions, the decision may be incorrect. Depending on library usage and attacker intent, impacts may include allow/block list bypasses, SSRF attacks, open redirects, or other undesired behavior. For example the URL `https://expected-example.com\\@observed-example.com` will incorrectly return `observed-example.com` if using an affected version. Patched versions correctly return `expected-example.com`. Patched versions match the behavior of other parsers which implement the WHATWG URL specification, including web browsers and Node\u0027s built-in URL class. Version 1.19.4 is patched against all known payload variants. Version 1.19.3 has a partial patch but is still vulnerable to a payload variant.]",
      "id": "GSD-2020-26291",
      "modified": "2023-12-13T01:22:08.482783Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2020-26291",
        "STATE": "PUBLIC",
        "TITLE": "Hostname spoofing in URI.js"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "URI.js",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003c 1.19.4"
                        }
                      ]
                    }
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                ]
              },
              "vendor_name": "medialize"
            }
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      "description": {
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            "lang": "eng",
            "value": "URI.js is a javascript URL mutation library (npm package urijs). In URI.js before version 1.19.4, the hostname can be spoofed by using a backslash (`\\`) character followed by an at (`@`) character. If the hostname is used in security decisions, the decision may be incorrect. Depending on library usage and attacker intent, impacts may include allow/block list bypasses, SSRF attacks, open redirects, or other undesired behavior. For example the URL `https://expected-example.com\\@observed-example.com` will incorrectly return `observed-example.com` if using an affected version. Patched versions correctly return `expected-example.com`. Patched versions match the behavior of other parsers which implement the WHATWG URL specification, including web browsers and Node\u0027s built-in URL class. Version 1.19.4 is patched against all known payload variants. Version 1.19.3 has a partial patch but is still vulnerable to a payload variant.]"
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-20 Improper Input Validation"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/medialize/URI.js/security/advisories/GHSA-3329-pjwv-fjpg",
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            "url": "https://github.com/medialize/URI.js/security/advisories/GHSA-3329-pjwv-fjpg"
          },
          {
            "name": "https://www.npmjs.com/package/urijs",
            "refsource": "MISC",
            "url": "https://www.npmjs.com/package/urijs"
          },
          {
            "name": "https://github.com/medialize/URI.js/releases/tag/v1.19.4",
            "refsource": "MISC",
            "url": "https://github.com/medialize/URI.js/releases/tag/v1.19.4"
          },
          {
            "name": "https://github.com/medialize/URI.js/commit/b02bf037c99ac9316b77ff8bfd840e90becf1155",
            "refsource": "MISC",
            "url": "https://github.com/medialize/URI.js/commit/b02bf037c99ac9316b77ff8bfd840e90becf1155"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-3329-pjwv-fjpg",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c1.19.4",
          "affected_versions": "All versions before 1.19.4",
          "cvss_v2": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-20",
            "CWE-937"
          ],
          "date": "2021-01-06",
          "description": "In URI.js the hostname can be spoofed by using a backslash `\\` character followed by an at `@` character. If the hostname is used in security decisions, the decision may be incorrect. Depending on library usage and attacker intent, impacts may include allow/block list bypasses, SSRF attacks, open redirects, or other undesired behavior. For example the URL `https://expected-example.com\\@observed-example.com` will incorrectly return `observed-example.com` if using an affected version.",
          "fixed_versions": [
            "1.19.4"
          ],
          "identifier": "CVE-2020-26291",
          "identifiers": [
            "CVE-2020-26291",
            "GHSA-3329-pjwv-fjpg"
          ],
          "not_impacted": "All versions starting from 1.19.4",
          "package_slug": "npm/urijs",
          "pubdate": "2020-12-31",
          "solution": "Upgrade to version 1.19.4 or above.",
          "title": "Improper Input Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-26291"
          ],
          "uuid": "96964273-f1d5-4836-916b-1c3c6f433b6a"
        }
      ]
    },
    "nvd.nist.gov": {
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        "nodes": [
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            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:uri.js_project:uri.js:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.19.4",
                "vulnerable": true
              }
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            "operator": "OR"
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        "description": {
          "description_data": [
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              "lang": "en",
              "value": "URI.js is a javascript URL mutation library (npm package urijs). In URI.js before version 1.19.4, the hostname can be spoofed by using a backslash (`\\`) character followed by an at (`@`) character. If the hostname is used in security decisions, the decision may be incorrect. Depending on library usage and attacker intent, impacts may include allow/block list bypasses, SSRF attacks, open redirects, or other undesired behavior. For example the URL `https://expected-example.com\\@observed-example.com` will incorrectly return `observed-example.com` if using an affected version. Patched versions correctly return `expected-example.com`. Patched versions match the behavior of other parsers which implement the WHATWG URL specification, including web browsers and Node\u0027s built-in URL class. Version 1.19.4 is patched against all known payload variants. Version 1.19.3 has a partial patch but is still vulnerable to a payload variant.]"
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-20"
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              ]
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.npmjs.com/package/urijs",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.npmjs.com/package/urijs"
            },
            {
              "name": "https://github.com/medialize/URI.js/security/advisories/GHSA-3329-pjwv-fjpg",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
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              "url": "https://github.com/medialize/URI.js/security/advisories/GHSA-3329-pjwv-fjpg"
            },
            {
              "name": "https://github.com/medialize/URI.js/releases/tag/v1.19.4",
              "refsource": "MISC",
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                "Release Notes",
                "Third Party Advisory"
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              "url": "https://github.com/medialize/URI.js/releases/tag/v1.19.4"
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              "name": "https://github.com/medialize/URI.js/commit/b02bf037c99ac9316b77ff8bfd840e90becf1155",
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                "Patch",
                "Third Party Advisory"
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              "url": "https://github.com/medialize/URI.js/commit/b02bf037c99ac9316b77ff8bfd840e90becf1155"
            }
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 4.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-11-29T15:00Z",
      "publishedDate": "2020-12-31T00:15Z"
    }
  }
}