What’s Vulnerable › Vulnerabilities

CVE-2021-32014

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-07-19 · updated 2026-06-17
• Weakness: CWE-400

Description

SheetJS and SheetJS Pro through 0.16.9 allows attackers to cause a denial of service (CPU consumption) via a crafted .xlsx document that is mishandled when read by xlsx.js.

Affected products

• Oracle Corporation Oracle REST Data Services: before 21.2.4 — fixed in 21.2.4
• Sheetjs: through 0.16.9
• Sheetjs Pro: through 0.16.9

How to fix

Upgrade to a fixed version: Oracle Corporation Oracle REST Data Services 21.2.4. Check the vendor advisory for mitigations.

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/
• https://sheetjs.com/pro
• https://www.npmjs.com/package/xlsx/v/0.17.0
• https://www.oracle.com/security-alerts/cpujan2022.html

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