CVE-2026-25755 jsPDF has PDF Object Injection via Unsanitized Input in addJS Method

High 8.1 Published Updated

Attackers can inject arbitrary PDF objects via the addJS method, potentially executing malicious code when users open the generated PDF.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2026-25755?

CVE-2026-25755 is a high-severity code injection vulnerability in parallax jsPDF, published on 19 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

jsPDF is a library to generate PDFs in JavaScript. Prior to 4.2.0, user control of the argument of the `addJS` method allows an attacker to inject arbitrary PDF objects into the generated document. By crafting a payload that escapes the JavaScript string delimiter, an attacker can execute malicious actions or alter the document structure, impacting any user who opens the generated PDF. The vulnerability has been fixed in [email protected]. As a workaround, escape parentheses in user-provided JavaScript code before passing them to the `addJS` method.

Weakness: CWE-94, CWE-116

Which versions are affected by CVE-2026-25755?

2 open source packages ship an affected version, including jspdf. It affects 1 product.

PackageAffectedFixed in
jspdf npmAll versions4.2.0
jspdf npmAll versions4.2.0

Products include Parall Jspdf.

How do I fix CVE-2026-25755?

Upgrade jspdf to 4.2.0 or later.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-25755 being exploited?

There is no known exploitation of CVE-2026-25755 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-9vjf-qc39-jprp, ROOT-APP-NPM-CVE-2026-25755.

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