CVE-2021-23566 (GCVE-0-2021-23566)

Vulnerability from cvelistv5 – Published: 2022-01-14 20:05 – Updated: 2025-11-03 21:44
VLAI
Title
Information Exposure
Summary
The package nanoid from 3.0.0 and before 3.1.31 are vulnerable to Information Exposure via the valueOf() function which allows to reproduce the last id generated.
Severity
4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P
CWE
  • Information Exposure
Assigner
References
Impacted products
Vendor Product Version
n/a nanoid Affected: unspecified , < 3.1.31 (custom)
Date Public
2022-01-14 00:00
Credits
Artyom Arutyunyan
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T21:44:38.677Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://snyk.io/vuln/SNYK-JS-NANOID-2332193"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2332550"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://gist.github.com/artalar/bc6d1eb9a3477d15d2772e876169a444"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/ai/nanoid/commit/2b7bd9332bc49b6330c7ddb08e5c661833db2575"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/ai/nanoid/pull/328"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00006.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00025.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "nanoid",
          "vendor": "n/a",
          "versions": [
            {
              "lessThan": "3.1.31",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Artyom Arutyunyan"
        }
      ],
      "datePublic": "2022-01-14T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The package nanoid from 3.0.0 and before 3.1.31 are vulnerable to Information Exposure via the valueOf() function which allows to reproduce the last id generated."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "exploitCodeMaturity": "PROOF_OF_CONCEPT",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "remediationLevel": "NOT_DEFINED",
            "reportConfidence": "NOT_DEFINED",
            "scope": "UNCHANGED",
            "temporalScore": 3.8,
            "temporalSeverity": "LOW",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Information Exposure",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-02-02T18:10:58.000Z",
        "orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
        "shortName": "snyk"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://snyk.io/vuln/SNYK-JS-NANOID-2332193"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2332550"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://gist.github.com/artalar/bc6d1eb9a3477d15d2772e876169a444"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ai/nanoid/commit/2b7bd9332bc49b6330c7ddb08e5c661833db2575"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ai/nanoid/pull/328"
        }
      ],
      "title": "Information Exposure",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "report@snyk.io",
          "DATE_PUBLIC": "2022-01-14T20:00:02.498233Z",
          "ID": "CVE-2021-23566",
          "STATE": "PUBLIC",
          "TITLE": "Information Exposure"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "nanoid",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "3.1.31"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Artyom Arutyunyan"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The package nanoid from 3.0.0 and before 3.1.31 are vulnerable to Information Exposure via the valueOf() function which allows to reproduce the last id generated."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Information Exposure"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://snyk.io/vuln/SNYK-JS-NANOID-2332193",
              "refsource": "MISC",
              "url": "https://snyk.io/vuln/SNYK-JS-NANOID-2332193"
            },
            {
              "name": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2332550",
              "refsource": "MISC",
              "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2332550"
            },
            {
              "name": "https://gist.github.com/artalar/bc6d1eb9a3477d15d2772e876169a444",
              "refsource": "MISC",
              "url": "https://gist.github.com/artalar/bc6d1eb9a3477d15d2772e876169a444"
            },
            {
              "name": "https://github.com/ai/nanoid/commit/2b7bd9332bc49b6330c7ddb08e5c661833db2575",
              "refsource": "MISC",
              "url": "https://github.com/ai/nanoid/commit/2b7bd9332bc49b6330c7ddb08e5c661833db2575"
            },
            {
              "name": "https://github.com/ai/nanoid/pull/328",
              "refsource": "MISC",
              "url": "https://github.com/ai/nanoid/pull/328"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
    "assignerShortName": "snyk",
    "cveId": "CVE-2021-23566",
    "datePublished": "2022-01-14T20:05:21.597Z",
    "dateReserved": "2021-01-08T00:00:00.000Z",
    "dateUpdated": "2025-11-03T21:44:38.677Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-23566",
      "date": "2026-05-26",
      "epss": "0.00027",
      "percentile": "0.08014"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:nanoid_project:nanoid:*:*:*:*:*:node.js:*:*\", \"versionStartIncluding\": \"3.0.0\", \"versionEndExcluding\": \"3.1.31\", \"matchCriteriaId\": \"6264B90E-B9A3-4BA7-9CF8-88C3994317BA\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"The package nanoid from 3.0.0 and before 3.1.31 are vulnerable to Information Exposure via the valueOf() function which allows to reproduce the last id generated.\"}, {\"lang\": \"es\", \"value\": \"El paquete nanoid desde la versi\\u00f3n 3.0.0 y antes de la versi\\u00f3n 3.1.31, es vulnerable a una Exposici\\u00f3n de Informaci\\u00f3n por medio de la funci\\u00f3n valueOf() que permite reproducir el \\u00faltimo id generado\"}]",
      "id": "CVE-2021-23566",
      "lastModified": "2024-11-21T05:51:50.010",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"report@snyk.io\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\", \"baseScore\": 4.0, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.5, \"impactScore\": 1.4}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:L/AC:L/Au:N/C:P/I:N/A:N\", \"baseScore\": 2.1, \"accessVector\": \"LOCAL\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"LOW\", \"exploitabilityScore\": 3.9, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2022-01-14T20:15:10.093",
      "references": "[{\"url\": \"https://gist.github.com/artalar/bc6d1eb9a3477d15d2772e876169a444\", \"source\": \"report@snyk.io\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/ai/nanoid/commit/2b7bd9332bc49b6330c7ddb08e5c661833db2575\", \"source\": \"report@snyk.io\", \"tags\": [\"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/ai/nanoid/pull/328\", \"source\": \"report@snyk.io\", \"tags\": [\"Exploit\", \"Issue Tracking\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2332550\", \"source\": \"report@snyk.io\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://snyk.io/vuln/SNYK-JS-NANOID-2332193\", \"source\": \"report@snyk.io\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://gist.github.com/artalar/bc6d1eb9a3477d15d2772e876169a444\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/ai/nanoid/commit/2b7bd9332bc49b6330c7ddb08e5c661833db2575\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/ai/nanoid/pull/328\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Issue Tracking\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2332550\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://snyk.io/vuln/SNYK-JS-NANOID-2332193\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}]",
      "sourceIdentifier": "report@snyk.io",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-704\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-23566\",\"sourceIdentifier\":\"report@snyk.io\",\"published\":\"2022-01-14T20:15:10.093\",\"lastModified\":\"2025-11-03T22:15:47.710\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The package nanoid from 3.0.0 and before 3.1.31 are vulnerable to Information Exposure via the valueOf() function which allows to reproduce the last id generated.\"},{\"lang\":\"es\",\"value\":\"El paquete nanoid desde la versi\u00f3n 3.0.0 y antes de la versi\u00f3n 3.1.31, es vulnerable a una Exposici\u00f3n de Informaci\u00f3n por medio de la funci\u00f3n valueOf() que permite reproducir el \u00faltimo id generado\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"report@snyk.io\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":4.0,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.5,\"impactScore\":1.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:P/I:N/A:N\",\"baseScore\":2.1,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.9,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-704\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nanoid_project:nanoid:*:*:*:*:*:node.js:*:*\",\"versionStartIncluding\":\"3.0.0\",\"versionEndExcluding\":\"3.1.31\",\"matchCriteriaId\":\"6264B90E-B9A3-4BA7-9CF8-88C3994317BA\"}]}]}],\"references\":[{\"url\":\"https://gist.github.com/artalar/bc6d1eb9a3477d15d2772e876169a444\",\"source\":\"report@snyk.io\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/ai/nanoid/commit/2b7bd9332bc49b6330c7ddb08e5c661833db2575\",\"source\":\"report@snyk.io\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/ai/nanoid/pull/328\",\"source\":\"report@snyk.io\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2332550\",\"source\":\"report@snyk.io\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://snyk.io/vuln/SNYK-JS-NANOID-2332193\",\"source\":\"report@snyk.io\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://gist.github.com/artalar/bc6d1eb9a3477d15d2772e876169a444\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/ai/nanoid/commit/2b7bd9332bc49b6330c7ddb08e5c661833db2575\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/ai/nanoid/pull/328\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/12/msg00025.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/01/msg00006.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2332550\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://snyk.io/vuln/SNYK-JS-NANOID-2332193\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.