{"schemaVersion":3,"id":"CVE-2019-17426","aliases":["GHSA-8687-vv9j-hgph"],"status":"published","duplicateOf":null,"title":null,"description":"Automattic Mongoose through 5.7.4 allows attackers to bypass access control (in some applications) because any query object with a _bsontype attribute is ignored. For example, adding \"_bsontype\":\"a\" can sometimes interfere with a query filter. NOTE: this CVE is about Mongoose's failure to work around this _bsontype special case that exists in older versions of the bson parser (aka the mongodb/js-bson project).","dates":{"published":"2019-10-10T00:35:17.000Z","modified":"2024-08-05T01:40:15.456Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.1,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Npm","score":9.1,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","exploitability":10,"impact":8.7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.1,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.4,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01497,"percentile":0.73848,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":-0.16299999999999995,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.0166},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01497,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01497,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01497,"percentile":0.73848}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0166,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01497,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01497,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01497,"percentile":0.73848}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"mongoosejs","product":"mongoose","name":"mongoose","label":"mongoose","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 5.7.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 5.7.4","eol":null,"hubHref":"/vendor/mongoosejs/mongoose"},{"vendor":"Npm","product":"mongoose","name":"mongoose","label":"mongoose","ecosystem":"Npm","cpePart":null,"purl":"pkg:npm/mongoose","purlType":"npm","versions":[{"text":"≥ 5.0.0, < 5.7.5","noFixRecorded":false,"fixedIn":null},{"text":"< 4.13.21","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 5.0.0, < 5.7.5 | < 4.13.21","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/Automattic/mongoose/issues/8222","label":"github.com/Automattic/mongoose/issues/8222","hostname":"github.com","tags":["X Refsource MISC","WEB","Third Party Advisory"]},{"url":"https://github.com/Automattic/mongoose/commit/f3eca5b94d822225c04e96cbeed9f095afb3c31c","label":"github.com/Automattic/mongoose/commit/f3eca5b94d822225c04e96cbeed9f095afb3c31c","hostname":"github.com","tags":["X Refsource MISC","WEB","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-17426","label":"nvd.nist.gov/vuln/detail/CVE-2019-17426","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/Automattic/mongoose/commit/f88eb2524b65a68ff893c90a03c04f0913c1913e","label":"github.com/Automattic/mongoose/commit/f88eb2524b65a68ff893c90a03c04f0913c1913e","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/Automattic/mongoose","label":"github.com/Automattic/mongoose","hostname":"github.com","tags":["PACKAGE"]},{"url":"https://github.com/Automattic/mongoose/commits/4.13.21","label":"github.com/Automattic/mongoose/commits/4.13.21","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/Automattic/mongoose/releases/tag/4.13.21","label":"github.com/Automattic/mongoose/releases/tag/4.13.21","hostname":"github.com","tags":["WEB"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2019-10-10T00:35:17.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T01:40:15.456Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T10:55:41.014Z","stale":false,"partial":false}}