CVE-2021-23353 Regular Expression Denial of Service (ReDoS)
Attackers can cause a denial of service in the jsPDF library via a regular expression denial of service in the addImage function.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-23353?
CVE-2021-23353 is a medium-severity denial of service vulnerability in jspdf, published on 9 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
This affects the package jspdf before 2.3.1. ReDoS is possible via the addImage function.
Which versions are affected by CVE-2021-23353?
2 open source packages ship an affected version, including jspdf. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
jspdf npm | All versions | 2.3.1 |
jspdf npm | All versions | 2.3.1 |
Products include Parall Jspdf.
How do I fix CVE-2021-23353?
Upgrade jspdf to 2.3.1 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-23353 being exploited?
There is no known exploitation of CVE-2021-23353 in the wild and no public exploit code.
Other vulnerabilities in jspdf
- CVE-2026-31938 jsPDF has HTML Injection in New Window paths
- CVE-2025-68428 jsPDF has Local File Inclusion/Path Traversal vulnerability
- CVE-2026-25535 jsPDF Affected by Client-Side/Server-Side Denial of Service via Malicious GIF Dimensions
- CVE-2026-24133 jsPDF Affected by Denial of Service (DoS) via Unvalidated BMP Dimensions in BMPDecoder
- CVE-2025-57810 jsPDF Parsing of Corrupt PNGs Leads to Potential Denial of Service (DoS)
Sources
Also known as GHSA-57f3-gghm-9mhc.