CVE-2026-25535 jsPDF Affected by Client-Side/Server-Side Denial of Service via Malicious GIF Dimensions
Attackers can cause denial of service in applications using jsPDF by providing malicious GIF files with excessive dimensions to the addImage method.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-25535?
CVE-2026-25535 is a high-severity denial of service vulnerability in parallax jsPDF, published on 19 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
jsPDF is a library to generate PDFs in JavaScript. Prior to 4.2.0, user control of the first argument of the `addImage` method results in denial of service. If given the possibility to pass unsanitized image data or URLs to the `addImage` method, a user can provide a harmful GIF file that results in out of memory errors and denial of service. Harmful GIF files have large width and/or height entries in their headers, which lead to excessive memory allocation. Other affected methods are: `html`. The vulnerability has been fixed in jsPDF 4.2.0. As a workaround, sanitize image data or URLs before passing it to the addImage method or one of the other affected methods.
Which versions are affected by CVE-2026-25535?
2 open source packages ship an affected version, including jspdf. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
jspdf npm | All versions | 4.2.0 |
jspdf npm | All versions | 4.2.0 |
Products include Parall Jspdf.
How do I fix CVE-2026-25535?
Upgrade jspdf to 4.2.0 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-2026-25535 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-25535 exists.
Other vulnerabilities in parallax jsPDF
- CVE-2026-31938 jsPDF has HTML Injection in New Window paths
- CVE-2025-68428 jsPDF has Local File Inclusion/Path Traversal vulnerability
- CVE-2026-24133 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)
- CVE-2025-29907 jsPDF Bypass Regular Expression Denial of Service (ReDoS)
Sources
Also known as GHSA-67pg-wm7f-q7fj, ROOT-APP-NPM-CVE-2026-25535.