PGV-2425402 - SheetJS Regular Expression Denial of Service (ReDoS)

Disclosed on April 05, 2024 (updated September 19, 2025)

Vulnerability Overview

PGV-2425402 is a category 2 vulnerabilty that affects xlsx, versions (all)

CVSS Score: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Risk Assessment

The risk assessment shows that this vulnerability is exlpoited by a external attacker. An unauthorized external actor who attempts to exploit this vulnerability without legitimate access.

The impact is contained to the application. Exploitation remains confined to the application and cannot affect the host environment or external systems.

The threat damage is caused by a denial of service. Exploitation can completely deny access to the application, resulting in a full outage.

Vulnerability Details

SheetJS Community Edition before 0.20.2 is vulnerable.to Regular Expression Denial of Service (ReDoS).

A non-vulnerable version cannot be found via npm, as the repository hosted on GitHub and the npm package xlsx are no longer maintained. Version 0.20.2 can be downloaded via https://cdn.sheetjs.com/.

Common Weakness Enumerations

CWE-1333 - Inefficient Regular Expression Complexity

Additional References

Your Risk Profile

Network Exposure	External Accessable from the public internet
Access Interface	WebBrowser Primarily web-based applications
Service Outage	Disruptive Operations would be impacted
Data Breach	Disruptive Operations would be impacted
Data Tampering	Disruptive Operations would be impacted
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Additional Identifiers

CVE-2024-22363
GHSA-5pgg-2g8v-p4x9