{"id":"CVE-2019-17426","aliases":["EUVD-2019-0693","GHSA-8687-vv9j-hgph"],"status":"published","title":"Improper Input Validation in Automattic Mongoose","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).","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01497,"percentile":0.74392,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2019-10-10T00:35:17Z","modified":"2026-10-20T10:50:57Z","fixes":[{"ecosystem":"npm","package":"mongoose","fixed_in":["5.7.5","4.13.21"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"mongoose","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.0.0"},{"fixed":"5.7.5"}]}]},{"source":"ghsa","ecosystem":"npm","package":"mongoose","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.13.21"}]}]},{"source":"osv","ecosystem":"npm","package":"mongoose","ranges":[{"type":"SEMVER","events":[{"introduced":"5.0.0"},{"fixed":"5.7.5"}]}]},{"source":"osv","ecosystem":"npm","package":"mongoose","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"4.13.21"}]}]}],"products":[{"vendor":"mongoosejs","product":"mongoose"}],"references":[{"url":"https://github.com/Automattic/mongoose/issues/8222","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/Automattic/mongoose/commit/f3eca5b94d822225c04e96cbeed9f095afb3c31c","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-17426","tags":["advisory"]},{"url":"https://github.com/Automattic/mongoose/commits/4.13.21","tags":["web"]},{"url":"https://github.com/Automattic/mongoose/releases/tag/4.13.21","tags":["web"]},{"url":"https://github.com/Automattic/mongoose/commit/f88eb2524b65a68ff893c90a03c04f0913c1913e","tags":["web"]},{"url":"https://github.com/advisories/GHSA-8687-vv9j-hgph"},{"url":"https://github.com/Automattic/mongoose","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2019-17426","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).","status":"published","published":"2019-10-10T00:35:17Z","modified":"2024-08-05T01:40:15.456Z","updated_at":"2026-11-02T14:20:24.678649Z"}],"euvd":[{"id":"EUVD-2019-0693","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).","status":"published","published":"2019-10-10T00:35:17Z","modified":"2024-08-05T01:40:15Z","updated_at":"2026-11-03T02:40:30.328063Z"}],"ghsa":[{"id":"GHSA-8687-vv9j-hgph","title":"Improper Input Validation in Automattic Mongoose","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).","status":"published","published":"2019-10-22T20:19:54Z","modified":"2023-11-29T22:07:28Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:37:23.843848Z"}],"nvd":[{"id":"CVE-2019-17426","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).","status":"published","published":"2019-10-10T02:05:46.833Z","modified":"2026-06-17T02:23:55.95Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:05:31.019577Z"}],"osv":[{"id":"CVE-2019-17426","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).","status":"published","published":"2019-10-10T02:05:46.833Z","modified":"2026-10-20T10:50:57.973794324Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"updated_at":"2026-11-02T15:44:11.673963Z"},{"id":"GHSA-8687-vv9j-hgph","title":"Improper Input Validation in Automattic Mongoose","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).","status":"published","published":"2019-10-22T20:19:54Z","modified":"2023-11-29T22:07:26Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:46:42.077781Z"}]}}