What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-02-19 · updated 2026-08-18
• Weakness: CWE-94

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 jspdf@4.2.0. As a workaround, escape parentheses in user-provided JavaScript code before passing them to the `addJS` method.

Affected products

• parallax jsPDF: before 4.2.0 — fixed in 4.2.0

How to fix

Upgrade to a fixed version: parallax jsPDF 4.2.0. Check the vendor advisory for mitigations.

References

• https://github.com/ZeroXJacks/CVEs/blob/main/2026/CVE-2026-25755.md
• https://github.com/parallax/jsPDF/commit/56b46d45b052346f5995b005a34af5dcdddd5437
• https://github.com/parallax/jsPDF/releases/tag/v4.2.0
• https://github.com/parallax/jsPDF/security/advisories/GHSA-9vjf-qc39-jprp
• https://access.redhat.com/errata/RHSA-2026:7110
• https://access.redhat.com/errata/RHSA-2026:7128
• https://access.redhat.com/security/cve/CVE-2026-25755
• https://bugzilla.redhat.com/show_bug.cgi?id=2440993
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25755.json

Get alerted when CVE-2026-25755 or the next vulnerability affects your stack