{"id":"CVE-2021-23574","aliases":["EUVD-2022-0557","GHSA-c6h4-gc3f-hgjq"],"status":"published","title":"Prototype Pollution","description":"All versions of package js-data are vulnerable to Prototype Pollution via the deepFillIn and the set functions. This is an incomplete fix of [CVE-2020-28442](https://snyk.io/vuln/SNYK-JS-JSDATA-1023655).","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.02168,"percentile":0.8241,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1321"],"published":"2021-12-24T20:00:18Z","modified":"2026-06-17T03:38:50Z","affected":[{"source":"ghsa","ecosystem":"npm","package":"js-data","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.0.10"}]}]},{"source":"osv","ecosystem":"npm","package":"js-data","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"3.0.10"}]}]}],"products":[{"vendor":"js-data","product":"js-data"}],"references":[{"url":"https://snyk.io/vuln/SNYK-JS-JSDATA-1584361","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","web"]},{"url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-2320790","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","web"]},{"url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2320791","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","web"]},{"url":"https://github.com/js-data/js-data/issues/576","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Third Party Advisory","web"]},{"url":"https://github.com/js-data/js-data/blob/master/dist/js-data.js%23L472","tags":["x_refsource_MISC","x_transferred","Broken Link","Third Party Advisory","web"]},{"url":"https://github.com/js-data/js-data/issues/577","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23574","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-c6h4-gc3f-hgjq"},{"url":"https://github.com/js-data/js-data","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-23574","title":"Prototype Pollution","description":"All versions of package js-data are vulnerable to Prototype Pollution via the deepFillIn and the set functions. This is an incomplete fix of [CVE-2020-28442](https://snyk.io/vuln/SNYK-JS-JSDATA-1023655).","status":"published","published":"2021-12-24T20:00:18.183Z","modified":"2024-09-16T20:16:46.579Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:00.819444Z"}],"euvd":[{"id":"EUVD-2022-0557","description":"All versions of package js-data are vulnerable to Prototype Pollution via the deepFillIn and the set functions. This is an incomplete fix of [CVE-2020-28442](https://snyk.io/vuln/SNYK-JS-JSDATA-1023655).","status":"published","published":"2021-12-24T20:00:18Z","modified":"2024-09-16T20:16:46Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O","level":"high"}],"updated_at":"2026-11-03T00:55:15.468069Z"}],"ghsa":[{"id":"GHSA-c6h4-gc3f-hgjq","title":"Prototype Pollution in js-data","description":"All versions of package js-data are vulnerable to Prototype Pollution via the deepFillIn and the set functions. This is an incomplete fix of [CVE-2020-28442](https://snyk.io/vuln/SNYK-JS-JSDATA-1023655).","status":"published","published":"2022-01-06T21:58:56Z","modified":"2023-02-03T05:03:31Z","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-1321"],"updated_at":"2026-11-02T14:36:41.967989Z"}],"nvd":[{"id":"CVE-2021-23574","description":"All versions of package js-data are vulnerable to Prototype Pollution via the deepFillIn and the set functions. This is an incomplete fix of [CVE-2020-28442](https://snyk.io/vuln/SNYK-JS-JSDATA-1023655).","status":"published","published":"2021-12-24T20:15:08.077Z","modified":"2026-06-17T03:38:50.18Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"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-1321"],"updated_at":"2026-11-02T14:07:02.977492Z"}],"osv":[{"id":"GHSA-c6h4-gc3f-hgjq","title":"Prototype Pollution in js-data","description":"All versions of package js-data are vulnerable to Prototype Pollution via the deepFillIn and the set functions. This is an incomplete fix of [CVE-2020-28442](https://snyk.io/vuln/SNYK-JS-JSDATA-1023655).","status":"published","published":"2022-01-06T21:58:56Z","modified":"2023-11-08T04:05:11.819771Z","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-1321"],"updated_at":"2026-11-02T15:46:44.571161Z"}]}}