{"id":"CVE-2022-24802","aliases":["EUVD-2022-1823","GHSA-r9w3-g83q-m6hq"],"status":"published","title":"Prototype Pollution in deepmerge-ts","description":"deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. deepmerge-ts is vulnerable to Prototype Pollution via file deepmerge.ts, function defaultMergeRecords(). This issue has been patched in version 4.0.2. There are no known workarounds for this issue.","severity":{"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","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01678,"percentile":0.77062,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1321","CWE-915"],"published":"2022-03-31T23:15:15Z","modified":"2026-10-28T02:31:09Z","fixes":[{"ecosystem":"npm","package":"deepmerge-ts","fixed_in":["4.0.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"deepmerge-ts","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.2"}]}]},{"source":"osv","ecosystem":"npm","package":"deepmerge-ts","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"4.0.2"}]}]}],"products":[{"vendor":"deepmerge-ts_project","product":"deepmerge-ts"},{"vendor":"rebeccastevens","product":"deepmerge-ts"}],"references":[{"url":"https://github.com/RebeccaStevens/deepmerge-ts/security/advisories/GHSA-r9w3-g83q-m6hq","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/RebeccaStevens/deepmerge-ts/commit/b39f1a93d9e1c3541bd2fe159fd696a16dbe1c72","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/RebeccaStevens/deepmerge-ts/commit/d637db7e4fb2bfb113cb4bc1c85a125936d7081b","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-24802","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-r9w3-g83q-m6hq"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/24xxx/CVE-2022-24802.json","tags":["advisory"]},{"url":"https://github.com/RebeccaStevens/deepmerge-ts","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2022-24802","title":"Prototype Pollution in deepmerge-ts","description":"deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. deepmerge-ts is vulnerable to Prototype Pollution via file deepmerge.ts, function defaultMergeRecords(). This issue has been patched in version 4.0.2. There are no known workarounds for this issue.","status":"published","published":"2022-03-31T23:15:15Z","modified":"2025-04-23T18:42:21.021Z","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","assessor":"cna"}],"cwes":["CWE-915"],"updated_at":"2026-11-02T14:34:34.940806Z"}],"euvd":[{"id":"EUVD-2022-1823","description":"deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. deepmerge-ts is vulnerable to Prototype Pollution via file deepmerge.ts, function defaultMergeRecords(). This issue has been patched in version 4.0.2. There are no known workarounds for this issue.","status":"published","published":"2022-03-31T23:15:15Z","modified":"2025-04-23T18:42:21Z","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":"2026-11-02T20:52:07.950001Z"}],"ghsa":[{"id":"GHSA-r9w3-g83q-m6hq","title":"Prototype Pollution in deepmerge-ts","description":"deepmerge-ts is used to merge 2 or more objects respecting type information. deepmerge-ts is vulnerable to Prototype Pollution via file deepmerge.ts, function defaultMergeRecords(). A fix was released in version 4.0.2. Currently, there is no known workaround.","status":"published","published":"2022-04-01T17:26:03Z","modified":"2023-01-27T05:01:20Z","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"}],"cwes":["CWE-915","CWE-1321"],"updated_at":"2026-11-02T14:36:16.28305Z"}],"nvd":[{"id":"CVE-2022-24802","description":"deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. deepmerge-ts is vulnerable to Prototype Pollution via file deepmerge.ts, function defaultMergeRecords(). This issue has been patched in version 4.0.2. There are no known workarounds for this issue.","status":"published","published":"2022-04-01T00:15:08.763Z","modified":"2026-06-17T04:32:33.173Z","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","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-915","CWE-1321"],"updated_at":"2026-11-02T14:07:14.706146Z"}],"osv":[{"id":"CVE-2022-24802","title":"Prototype Pollution in deepmerge-ts","description":"deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. deepmerge-ts is vulnerable to Prototype Pollution via file deepmerge.ts, function defaultMergeRecords(). This issue has been patched in version 4.0.2. There are no known workarounds for this issue.","status":"published","published":"2022-03-31T23:15:15Z","modified":"2026-10-28T02:31:09.409473294Z","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"}],"cwes":["CWE-915"],"updated_at":"2026-11-02T15:44:24.428403Z"},{"id":"GHSA-r9w3-g83q-m6hq","title":"Prototype Pollution in deepmerge-ts","description":"deepmerge-ts is used to merge 2 or more objects respecting type information. deepmerge-ts is vulnerable to Prototype Pollution via file deepmerge.ts, function defaultMergeRecords(). A fix was released in version 4.0.2. Currently, there is no known workaround.","status":"published","published":"2022-04-01T17:26:03Z","modified":"2023-11-08T04:08:37.0799Z","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"}],"cwes":["CWE-1321","CWE-915"],"updated_at":"2026-11-02T15:46:55.877614Z"}]}}