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CVE-2021-32012

20
FAUCET Score

CVE-2021-32012 describes a denial-of-service vulnerability affecting SheetJS and SheetJS Pro versions through 0.16.9, including Oracle REST Data Services. An attacker can exploit this by crafting a malicious .xlsx document that, when processed by xlsx.js, leads to excessive memory consumption. Rated as Medium severity (CVSS 5.5), this vulnerability requires user interaction (UI:R) and local access (AV:L), resulting in high availability impact (A:H) but no confidentiality or integrity compromise. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.16.9CPE matchmatch criteria
cpe:2.3:a:sheetjs_project:sheetjs:*:*:*:*:*:node.js:*:*
<= 0.16.9CPE matchmatch criteria
cpe:2.3:a:sheetjs_project:sheetjs_pro:*:*:*:*:*:node.js:*:*
< 21.2.4CPE matchmatch criteria
cpe:2.3:a:oracle:rest_data_services:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.88%
Probability of exploitation in next 30 days
EPSS Percentile
55.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0088 is in the 64th percentile among its peer group of 5,758 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

mavenpatch availablevia ghsa
Product: org.webjars.npm:xlsxFixed in: 0.17.0
npmpatch availablevia ghsa
Product: xlsxFixed in: 0.17.0
oraclepatch availablevia nvd_reference
View patch

Vendor Advisories (1)

npmGHSA-3x9f-74h4-2fqrmedium

Denial of Service in SheetJS Pro

Jul 22, 2021

References

floqast.com / engineering-blog/post/fuzzing-and-parsing-securely
Third Party Advisory
sheetjs.com / pro
ProductVendor Advisory
npmjs.com / package/xlsx/v/0.17.0
ProductThird Party Advisory
oracle.com / security-alerts/cpujan2022.html
PatchThird Party Advisory