{"id":"CVE-2021-32012","aliases":["EUVD-2021-1438","GHSA-3x9f-74h4-2fqr"],"status":"published","title":"Denial of Service in SheetJS Pro","description":"SheetJS and SheetJS Pro through 0.16.9 allows attackers to cause a denial of service (memory consumption) via a crafted .xlsx document that is mishandled when read by xlsx.js (issue 1 of 2).","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0088,"percentile":0.59346,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2021-07-19T13:20:01Z","modified":"2026-09-10T03:49:06Z","fixes":[{"ecosystem":"npm","package":"xlsx","fixed_in":["0.17.0"],"sources":["ghsa","osv"]},{"ecosystem":"Maven","package":"org.webjars.npm:xlsx","fixed_in":["0.17.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"xlsx","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.17.0"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.webjars.npm:xlsx","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.17.0"}]}]},{"source":"osv","ecosystem":"npm","package":"xlsx","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.17.0"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.webjars.npm:xlsx","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.17.0"}]}],"versions":["0.12.11","0.12.13","0.12.5","0.14.0","0.14.1","0.14.3","0.14.5","0.15.0","0.15.1","0.15.2","0.15.3","0.15.4","0.15.5","0.15.6","0.16.6","0.16.7","0.16.8","0.16.9","0.8.0","0.9.13"]}],"products":[{"vendor":"oracle","product":"rest_data_services"},{"vendor":"sheetjs_project","product":"sheetjs"},{"vendor":"sheetjs_project","product":"sheetjs_pro"}],"references":[{"url":"https://sheetjs.com/pro","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory","web"]},{"url":"https://www.oracle.com/security-alerts/cpujan2022.html","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","web"]},{"url":"https://floqast.com/engineering-blog/post/fuzzing-and-parsing-securely/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://www.npmjs.com/package/xlsx/v/0.17.0","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32012","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-3x9f-74h4-2fqr"},{"url":"https://floqast.com/engineering-blog/post/fuzzing-and-parsing-securely","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2021-32012","description":"SheetJS and SheetJS Pro through 0.16.9 allows attackers to cause a denial of service (memory consumption) via a crafted .xlsx document that is mishandled when read by xlsx.js (issue 1 of 2).","status":"published","published":"2021-07-19T13:20:01Z","modified":"2024-08-03T23:17:27.886Z","updated_at":"2026-11-02T14:33:07.349244Z"}],"euvd":[{"id":"EUVD-2021-1438","description":"SheetJS and SheetJS Pro through 0.16.9 allows attackers to cause a denial of service (memory consumption) via a crafted .xlsx document that is mishandled when read by xlsx.js (issue 1 of 2).","status":"published","published":"2021-07-19T13:20:01Z","modified":"2024-08-03T23:17:27Z","updated_at":"2026-11-03T03:24:37.407491Z"}],"ghsa":[{"id":"GHSA-3x9f-74h4-2fqr","title":"Denial of Service in SheetJS Pro","description":"SheetJS Pro through 0.16.9 allows attackers to cause a denial of service (memory consumption) via a crafted .xlsx document that is mishandled when read by xlsx.js (issue 1 of 2).","status":"published","published":"2021-07-22T19:48:17Z","modified":"2023-02-01T05:06:10Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:36:37.441118Z"}],"nvd":[{"id":"CVE-2021-32012","description":"SheetJS and SheetJS Pro through 0.16.9 allows attackers to cause a denial of service (memory consumption) via a crafted .xlsx document that is mishandled when read by xlsx.js (issue 1 of 2).","status":"published","published":"2021-07-19T14:15:08.037Z","modified":"2026-06-17T03:52:40.43Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:06:55.747384Z"}],"osv":[{"id":"GHSA-3x9f-74h4-2fqr","title":"Denial of Service in SheetJS Pro","description":"SheetJS Pro through 0.16.9 allows attackers to cause a denial of service (memory consumption) via a crafted .xlsx document that is mishandled when read by xlsx.js (issue 1 of 2).","status":"published","published":"2021-07-22T19:48:17Z","modified":"2026-09-10T03:49:06.349951272Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:36.092962Z"}]}}