{"id":"CVE-2021-23403","aliases":["EUVD-2021-2452","GHSA-5xjx-4xcm-hpcm"],"status":"published","title":"Prototype Pollution","description":"All versions of package ts-nodash are vulnerable to Prototype Pollution via the Merge() function due to lack of validation input.","severity":{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01287,"percentile":0.70415,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1321","CWE-915"],"published":"2021-07-02T16:10:16Z","modified":"2026-06-17T03:38:41Z","fixes":[{"ecosystem":"npm","package":"ts-nodash","fixed_in":["1.2.7"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"ts-nodash","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.7"}]}]},{"source":"osv","ecosystem":"npm","package":"ts-nodash","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.2.7"}]}]}],"products":[{"vendor":"ts-nodash_project","product":"ts-nodash"}],"references":[{"url":"https://snyk.io/vuln/SNYK-JS-TSNODASH-1311009","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","web"]},{"url":"https://github.com/BadOPCode/NoDash/blob/master/src/Merge.ts","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23403","tags":["advisory"]},{"url":"https://github.com/BadOPCode/NoDash/commit/b9cc2b3b49f6cd5228e406bc57e17a28b998fea5","tags":["web"]},{"url":"https://github.com/advisories/GHSA-5xjx-4xcm-hpcm"},{"url":"https://github.com/BadOPCode/NoDash","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-23403","title":"Prototype Pollution","description":"All versions of package ts-nodash are vulnerable to Prototype Pollution via the Merge() function due to lack of validation input.","status":"published","published":"2021-07-02T16:10:16.567Z","modified":"2024-09-17T03:27:59.664Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:00.819444Z"}],"euvd":[{"id":"EUVD-2021-2452","description":"All versions of package ts-nodash are vulnerable to Prototype Pollution via the Merge() function due to lack of validation input.","status":"published","published":"2021-07-02T16:10:16Z","modified":"2024-09-17T03:27:59Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:C","level":"high"}],"updated_at":"2026-11-03T00:28:31.565881Z"}],"ghsa":[{"id":"GHSA-5xjx-4xcm-hpcm","title":"Prototype Pollution in ts-nodash","description":"`ts-nodash` before version 1.2.7 is vulnerable to Prototype Pollution via the Merge() function due to lack of validation input.","status":"published","published":"2021-12-10T18:53:42Z","modified":"2023-01-27T05:00:55Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-915","CWE-1321"],"updated_at":"2026-11-02T14:36:15.574072Z"}],"nvd":[{"id":"CVE-2021-23403","description":"All versions of package ts-nodash are vulnerable to Prototype Pollution via the Merge() function due to lack of validation input.","status":"published","published":"2021-07-02T17:15:07.97Z","modified":"2026-06-17T03:38:41.927Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","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":"2026-11-02T14:06:55.259633Z"}],"osv":[{"id":"GHSA-5xjx-4xcm-hpcm","title":"Prototype Pollution in ts-nodash","description":"`ts-nodash` before version 1.2.7 is vulnerable to Prototype Pollution via the Merge() function due to lack of validation input.","status":"published","published":"2021-12-10T18:53:42Z","modified":"2026-03-13T22:11:25.799549Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-1321","CWE-915"],"updated_at":"2026-11-02T15:46:38.911014Z"}]}}