{"cve":"CVE-2021-32012","nvd":{"published":"2021-07-19T14:15:08.037","modified":"2026-06-17T03:52:40.430","status":"Modified","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).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-400"],"references":["https://floqast.com/engineering-blog/post/fuzzing-and-parsing-securely/","https://sheetjs.com/pro","https://www.npmjs.com/package/xlsx/v/0.17.0","https://www.oracle.com/security-alerts/cpujan2022.html","https://floqast.com/engineering-blog/post/fuzzing-and-parsing-securely/"],"products":["oracle:rest_data_services","sheetjs_project:sheetjs","sheetjs_project:sheetjs_pro"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-32012","score":0.0088,"percentile":0.59113,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-3x9f-74h4-2fqr","url":"https://osv.dev/vulnerability/GHSA-3x9f-74h4-2fqr","summary":"Denial of Service in SheetJS Pro","modified":"2026-09-10T03:49:06.349951272Z","packages":[{"ecosystem":"npm","name":"xlsx","purl":"pkg:npm/xlsx","ranges":["<0.17.0"],"fixed":["0.17.0"]},{"ecosystem":"Maven","name":"org.webjars.npm:xlsx","purl":"pkg:maven/org.webjars.npm/xlsx","ranges":["<0.17.0"],"fixed":["0.17.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}