{"id":"CVE-2021-23413","aliases":["DEBIAN-CVE-2021-23413","EUVD-2021-1773","GHSA-jg8v-48h5-wgxg","UBUNTU-CVE-2021-23413"],"status":"published","title":"Denial of Service (DoS)","description":"This affects the package jszip before 3.7.0. Crafting a new zip file with filenames set to Object prototype values (e.g __proto__, toString, etc) results in a returned object with a modified prototype instance.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.03441,"percentile":0.89151,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1321"],"published":"2021-07-25T13:10:12Z","modified":"2026-10-23T18:04:50Z","fixes":[{"ecosystem":"npm","package":"jszip","fixed_in":["3.7.0","2.7.0"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"node-jszip","fixed_in":["3.5.0+dfsg-2"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"node-jszip","fixed_in":["3.5.0+dfsg-2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"node-jszip","fixed_in":["3.5.0+dfsg-2"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"jszip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.7.0"}]}]},{"source":"ghsa","ecosystem":"npm","package":"jszip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"node-jszip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.0+dfsg-2"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"node-jszip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.0+dfsg-2"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"node-jszip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.0+dfsg-2"}]}]},{"source":"osv","ecosystem":"npm","package":"jszip","ranges":[{"type":"SEMVER","events":[{"introduced":"3.0.0"},{"fixed":"3.7.0"}]}]},{"source":"osv","ecosystem":"npm","package":"jszip","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.7.0"}]}]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"node-jszip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.4+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"node-jszip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.2+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"node-jszip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.5.0+dfsg-2","3.7.1+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"node-jszip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.10.1+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"node-jszip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.10.1+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"node-jszip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.10.1+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"node-jszip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.10.1+dfsg-2"]}],"products":[{"vendor":"jszip_project","product":"jszip"}],"references":[{"url":"https://snyk.io/vuln/SNYK-JS-JSZIP-1251497","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","fix","web","report"]},{"url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1251498","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","fix","web","report"]},{"url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1251499","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","fix","web","report"]},{"url":"https://github.com/Stuk/jszip/blob/master/lib/object.js%23L88","tags":["x_refsource_MISC","x_transferred","Broken Link","web","report"]},{"url":"https://github.com/Stuk/jszip/commit/22357494f424178cb416cdb7d93b26dd4f824b36","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web","report"]},{"url":"https://github.com/Stuk/jszip/pull/766","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23413","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-jg8v-48h5-wgxg"},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-23413","tags":["advisory"]},{"url":"https://github.com/Stuk/jszip","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2021-23413","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-23413","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-23413","title":"Denial of Service (DoS)","description":"This affects the package jszip before 3.7.0. Crafting a new zip file with filenames set to Object prototype values (e.g __proto__, toString, etc) results in a returned object with a modified prototype instance.","status":"published","published":"2021-07-25T13:10:12.559Z","modified":"2024-09-16T19:56:45.208Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:33:00.488332Z"}],"euvd":[{"id":"EUVD-2021-1773","description":"This affects the package jszip before 3.7.0. Crafting a new zip file with filenames set to Object prototype values (e.g __proto__, toString, etc) results in a returned object with a modified prototype instance.","status":"published","published":"2021-07-25T13:10:12Z","modified":"2024-09-16T19:56:45Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-03T00:55:18.708292Z"}],"ghsa":[{"id":"GHSA-jg8v-48h5-wgxg","title":"jszip Vulnerable to Prototype Pollution","description":"This affects the package jszip before 3.7.0. Crafting a new zip file with filenames set to Object prototype values (e.g `__proto__`, `toString`, etc) results in a returned object with a modified prototype instance.","status":"published","published":"2021-08-10T16:02:18Z","modified":"2023-09-21T05:03:51Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-1321"],"updated_at":"2026-11-02T14:37:06.234371Z"}],"nvd":[{"id":"CVE-2021-23413","description":"This affects the package jszip before 3.7.0. Crafting a new zip file with filenames set to Object prototype values (e.g __proto__, toString, etc) results in a returned object with a modified prototype instance.","status":"published","published":"2021-07-25T13:15:07.39Z","modified":"2026-06-17T03:38:43.067Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:56.185362Z"}],"osv":[{"id":"CVE-2021-23413","description":"This affects the package jszip before 3.7.0. Crafting a new zip file with filenames set to Object prototype values (e.g __proto__, toString, etc) results in a returned object with a modified prototype instance.","status":"published","published":"2021-07-25T13:15:07.39Z","modified":"2026-10-20T10:54:32.666878736Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:44:18.367807Z"},{"id":"DEBIAN-CVE-2021-23413","description":"This affects the package jszip before 3.7.0. Crafting a new zip file with filenames set to Object prototype values (e.g __proto__, toString, etc) results in a returned object with a modified prototype instance.","status":"published","published":"2021-07-25T13:15:07.39Z","modified":"2026-10-23T18:04:50.109994393Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:45:34.637046Z"},{"id":"GHSA-jg8v-48h5-wgxg","title":"jszip Vulnerable to Prototype Pollution","description":"This affects the package jszip before 3.7.0. Crafting a new zip file with filenames set to Object prototype values (e.g `__proto__`, `toString`, etc) results in a returned object with a modified prototype instance.","status":"published","published":"2021-08-10T16:02:18Z","modified":"2025-01-14T09:12:20.664854Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-1321"],"updated_at":"2026-11-02T15:46:50.336262Z"},{"id":"UBUNTU-CVE-2021-23413","description":"This affects the package jszip before 3.7.0. Crafting a new zip file with filenames set to Object prototype values (e.g __proto__, toString, etc) results in a returned object with a modified prototype instance.","status":"published","published":"2021-07-25T13:15:00Z","modified":"2026-10-17T12:56:19.582144075Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:54:26.779273Z"}]}}