CVE-2021-32012
Denial of Service in SheetJS Pro
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).
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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).
- Record
CVE-2021-32012- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-400
- Updated
- 2026-11-02
CVE List No score
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).
- Record
CVE-2021-32012- Updated
- 2026-11-02
EUVDEUVD-2021-1438 No score
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).
- Record
EUVD-2021-1438- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3x9f-74h4-2fqr
Denial of Service in SheetJS Pro
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).
- Record
GHSA-3x9f-74h4-2fqr- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
OSVGHSA-3x9f-74h4-2fqr
Denial of Service in SheetJS Pro
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).
- Record
GHSA-3x9f-74h4-2fqr- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
xlsxnpm |
before 0.17.0 | 0.17.0 |
org.webjars.npm:xlsxMaven |
before 0.17.0 | 0.17.0 |
org.webjars.npm:xlsxMaven |
before 0.17.0, plus listed versions 0.12.110.12.130.12.50.14.00.14.1 Show 15 moreShow less0.14.30.14.50.15.00.15.10.15.20.15.30.15.40.15.50.15.60.16.60.16.70.16.80.16.90.8.00.9.13 |
0.17.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-32012 is a medium vulnerability (CVSS 5.5) in Sheetjs Project Sheetjs, published July 19, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.88%, the 59th percentile. Fixed in xlsx 0.17.0.