{"id":"CVE-2019-10746","aliases":["ALSA-2021:0549","DEBIAN-CVE-2019-10746","EUVD-2019-0632","GHSA-fhjf-83wg-r2j9","RHSA-2021:0485","RHSA-2021:0549","RLSA-2021:0549","SNYK-JS-MIXINDEEP-450212","UBUNTU-CVE-2019-10746"],"status":"published","title":"Prototype Pollution in mixin-deep","description":"mixin-deep is vulnerable to Prototype Pollution in versions before 1.3.2 and version 2.0.0. The function mixin-deep could be tricked into adding or modifying properties of Object.prototype using a constructor payload.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.03651,"percentile":0.89683,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-88"],"published":"2019-08-23T16:43:49Z","modified":"2026-10-29T11:12:03Z","fixes":[{"ecosystem":"npm","package":"mixin-deep","fixed_in":["1.3.2","2.0.1"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"node-mixin-deep","fixed_in":["2.0.1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"node-mixin-deep","fixed_in":["2.0.1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"node-mixin-deep","fixed_in":["2.0.1-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"mixin-deep","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.2"}]}]},{"source":"ghsa","ecosystem":"npm","package":"mixin-deep","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"last_affected":"2.0.0"},{"fixed":"2.0.1"}]}],"versions":["2.0.0"]},{"source":"osv","ecosystem":"AlmaLinux:8","package":"nodejs-nodemon","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.3-1.module_el8.4.0+2521+c668cc9f"}]}],"bundled":7},{"source":"osv","ecosystem":"AlmaLinux:8","package":"nodejs-packaging","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17-3.module_el8.4.0+2224+b07ac28e"}]}],"bundled":7},{"source":"osv","ecosystem":"AlmaLinux:8","package":"nodejs-packaging","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17-3.module_el8.4.0+2521+c668cc9f"}]}],"bundled":7},{"source":"osv","ecosystem":"AlmaLinux:8","package":"nodejs-packaging","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17-3.module_el8.3.0+2023+d2377ea3"}]}],"bundled":7},{"source":"osv","ecosystem":"Debian:12","package":"node-mixin-deep","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.1-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"node-mixin-deep","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"node-mixin-deep","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.1-1"}]}]},{"source":"osv","ecosystem":"npm","package":"mixin-deep","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.3.2"}]}]},{"source":"osv","ecosystem":"npm","package":"mixin-deep","ranges":[{"type":"SEMVER","events":[{"introduced":"2.0.0"},{"fixed":"2.0.1"}]}],"versions":["2.0.0"]},{"source":"osv","ecosystem":"Red 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Linux:8","package":"nodejs-nodemon","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.0.3-1.module+el8.3.0+100+234774f7"}]}],"bundled":7},{"source":"osv","ecosystem":"Rocky Linux:8","package":"nodejs-nodemon","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.0.3-1.module+el8.4.0+638+5344c6f7"}]}],"bundled":7},{"source":"osv","ecosystem":"Rocky Linux:8","package":"nodejs-packaging","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:17-3.module+el8.3.0+101+f84c7154"}]}],"bundled":7},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"node-mixin-deep","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.3-1"]}],"products":[{"vendor":"fedoraproject","product":"fedora"},{"vendor":"mixin-deep_project","product":"mixin-deep"},{"vendor":"oracle","product":"communications_cloud_native_core_network_function_cloud_native_environment"}],"references":[{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXRA365KZCUNXMU3KDH5JN5BEPNIGUKC/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BFNIVG2XYFPZJY3DYYBJASZ7ZMKBMIJT/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://www.oracle.com//security-alerts/cpujul2021.html","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://snyk.io/vuln/SNYK-JS-MIXINDEEP-450212","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-10746","tags":["advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BFNIVG2XYFPZJY3DYYBJASZ7ZMKBMIJT/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UXRA365KZCUNXMU3KDH5JN5BEPNIGUKC/"},{"url":"https://www.npmjs.com/advisories/1013","tags":["web"]},{"url":"https://github.com/jonschlinkert/mixin-deep/commit/8f464c8ce9761a8c9c2b3457eaeee9d404fa7af9","tags":["web","report"]},{"url":"https://github.com/jonschlinkert/mixin-deep/commit/90ee1fab375fccfd9b926df718243339b4976d50","tags":["web"]},{"url":"https://github.com/advisories/GHSA-fhjf-83wg-r2j9"},{"url":"https://errata.almalinux.org/8/ALSA-2021-0549.html","tags":["advisory"]},{"url":"https://vulners.com/cve/CVE-2018-3750","tags":["report"]},{"url":"https://vulners.com/cve/CVE-2019-10746","tags":["report"]},{"url":"https://vulners.com/cve/CVE-2019-10747","tags":["report"]},{"url":"https://vulners.com/cve/CVE-2020-7754","tags":["report"]},{"url":"https://vulners.com/cve/CVE-2020-7788","tags":["report"]},{"url":"https://vulners.com/cve/CVE-2020-8265","tags":["report"]},{"url":"https://vulners.com/cve/CVE-2020-8287","tags":["report"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-10746","tags":["advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BFNIVG2XYFPZJY3DYYBJASZ7ZMKBMIJT","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UXRA365KZCUNXMU3KDH5JN5BEPNIGUKC","tags":["web"]},{"url":"https://access.redhat.com/errata/RHSA-2021:0485","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1795475","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1795479","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1892430","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1907444","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1912854","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1912863","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_0485.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2018-3750","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1578246","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-3750","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-3750","tags":["advisory"]},{"url":"https://hackerone.com/reports/311333","tags":["article"]},{"url":"https://nodesecurity.io/advisories/612","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2019-10746","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-10746","tags":["advisory","report"]},{"url":"https://access.redhat.com/security/cve/CVE-2019-10747","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-10747","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-10747","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-7754","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-7754","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7754","tags":["advisory"]},{"url":"https://github.com/npm/npm-user-validate/security/advisories/GHSA-xgh6-85xh-479p","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-7788","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-7788","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7788","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-8265","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-8265","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8265","tags":["advisory"]},{"url":"https://hackerone.com/reports/988103","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-8287","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-8287","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8287","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2021:0549","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_0549.json","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2021:0549","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-10746","tags":["report"]},{"url":"https://github.com/jonschlinkert/mixin-deep/issues/6","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2019-10746","description":"mixin-deep is vulnerable to Prototype Pollution in versions before 1.3.2 and version 2.0.0. The function mixin-deep could be tricked into adding or modifying properties of Object.prototype using a constructor payload.","status":"published","published":"2019-08-23T16:43:49Z","modified":"2024-08-04T22:32:01.518Z","updated_at":"2026-11-02T14:20:19.056416Z"}],"euvd":[{"id":"EUVD-2019-0632","description":"mixin-deep is vulnerable to Prototype Pollution in versions before 1.3.2 and version 2.0.0. The function mixin-deep could be tricked into adding or modifying properties of Object.prototype using a constructor payload.","status":"published","published":"2019-08-23T16:43:49Z","modified":"2024-08-04T22:32:01Z","updated_at":"2026-11-03T02:40:51.633398Z"}],"ghsa":[{"id":"GHSA-fhjf-83wg-r2j9","title":"Prototype Pollution in mixin-deep","description":"Versions of `mixin-deep` prior to 2.0.1 or 1.3.2 are vulnerable to Prototype Pollution. The `mixinDeep` function fails to validate which Object properties it updates. This allows attackers to modify the prototype of Object, causing the addition or modification of an existing property on all objects.\n\n\n## Recommendation\n\nIf you are using `mixin-deep` 2.x, upgrade to version 2.0.1 or later.\nIf you are using `mixin-deep` 1.x, upgrade to version 1.3.2 or later.","status":"published","published":"2019-08-27T17:42:33Z","modified":"2023-11-29T20:55:23Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-88"],"updated_at":"2026-11-02T14:37:23.843848Z"}],"nvd":[{"id":"CVE-2019-10746","description":"mixin-deep is vulnerable to Prototype Pollution in versions before 1.3.2 and version 2.0.0. The function mixin-deep could be tricked into adding or modifying properties of Object.prototype using a constructor payload.","status":"published","published":"2019-08-23T17:15:13.34Z","modified":"2026-06-17T02:11:35.493Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-88"],"updated_at":"2026-11-02T14:05:23.725587Z"}],"osv":[{"id":"CVE-2019-10746","description":"mixin-deep is vulnerable to Prototype Pollution in versions before 1.3.2 and version 2.0.0. The function mixin-deep could be tricked into adding or modifying properties of Object.prototype using a constructor payload.","status":"published","published":"2019-08-23T17:15:13.34Z","modified":"2026-10-24T10:31:06.023787007Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:10.383287Z"},{"id":"DEBIAN-CVE-2019-10746","description":"mixin-deep is vulnerable to Prototype Pollution in versions before 1.3.2 and version 2.0.0. The function mixin-deep could be tricked into adding or modifying properties of Object.prototype using a constructor payload.","status":"published","published":"2019-08-23T17:15:13.34Z","modified":"2026-09-21T07:00:55.123009935Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:31.170944Z"},{"id":"GHSA-fhjf-83wg-r2j9","title":"Prototype Pollution in mixin-deep","description":"Versions of `mixin-deep` prior to 2.0.1 or 1.3.2 are vulnerable to Prototype Pollution. The `mixinDeep` function fails to validate which Object properties it updates. This allows attackers to modify the prototype of Object, causing the addition or modification of an existing property on all objects.\n\n\n## Recommendation\n\nIf you are using `mixin-deep` 2.x, upgrade to version 2.0.1 or later.\nIf you are using `mixin-deep` 1.x, upgrade to version 1.3.2 or later.","status":"published","published":"2019-08-27T17:42:33Z","modified":"2026-09-10T03:48:25.650276868Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-88"],"updated_at":"2026-11-02T15:46:46.39441Z"},{"id":"RHSA-2021:0485","title":"Red Hat Security Advisory: rh-nodejs12-nodejs security update","status":"published","published":"2024-09-13T22:44:36Z","modified":"2026-06-28T10:42:22Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.071325Z"},{"id":"RHSA-2021:0549","title":"Red Hat Security Advisory: nodejs:12 security update","status":"published","published":"2024-09-13T22:43:49Z","modified":"2026-06-28T10:42:29Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.071325Z"},{"id":"RLSA-2021:0549","title":"Moderate: nodejs:12 security update","description":"Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. \n\nThe following packages have been upgraded to a later upstream version: nodejs (12.20.1), nodejs-nodemon (2.0.3).\n\nSecurity Fix(es):\n\n* nodejs-mixin-deep: prototype pollution in function mixin-deep (CVE-2019-10746)\n\n* nodejs-set-value: prototype pollution in function set-value (CVE-2019-10747)\n\n* nodejs-npm-user-validate: improper input validation when validating user emails leads to ReDoS (CVE-2020-7754)\n\n* nodejs-ini: prototype pollution via malicious INI file (CVE-2020-7788)\n\n* nodejs: use-after-free in the TLS implementation (CVE-2020-8265)\n\n* nodejs: HTTP request smuggling via two copies of a header field in an http request (CVE-2020-8287)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2021-02-16T07:34:29Z","modified":"2026-02-05T12:15:07.1896Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.969672Z"},{"id":"UBUNTU-CVE-2019-10746","description":"mixin-deep is vulnerable to Prototype Pollution in versions before 1.3.2 and version 2.0.0. The function mixin-deep could be tricked into adding or modifying properties of Object.prototype using a constructor payload.","status":"published","published":"2019-08-23T17:15:00Z","modified":"2025-10-24T04:47:36Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:19.202697Z"},{"id":"ALSA-2021:0549","title":"Moderate: nodejs:12 security update","description":"Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. \n\nThe following packages have been upgraded to a later upstream version: nodejs (12.20.1), nodejs-nodemon (2.0.3).\n\nSecurity Fix(es):\n\n* nodejs-mixin-deep: prototype pollution in function mixin-deep (CVE-2019-10746)\n\n* nodejs-set-value: prototype pollution in function set-value (CVE-2019-10747)\n\n* nodejs-npm-user-validate: improper input validation when validating user emails leads to ReDoS (CVE-2020-7754)\n\n* nodejs-ini: prototype pollution via malicious INI file (CVE-2020-7788)\n\n* nodejs: use-after-free in the TLS implementation (CVE-2020-8265)\n\n* nodejs: HTTP request smuggling via two copies of a header field in an http request (CVE-2020-8287)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2021-02-16T07:34:29Z","modified":"2026-10-29T11:12:03.862338147Z","updated_at":"2026-11-02T15:27:51.196609Z"}]}}