Allocation of Resources Without Limits or Throttling Affecting jspdf package, versions <4.2.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-JS-JSPDF-15322681
- published20 Feb 2026
- disclosed19 Feb 2026
- creditZeroXJacks
Introduced: 19 Feb 2026
NewCVE-2026-25535 (opens in a new tab)How to fix?
Upgrade jspdf to version 4.2.0 or higher.
Overview
jspdf is a PDF Document creation from JavaScript
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the addImage and html methods. An attacker can cause excessive memory allocation and application unavailability by supplying malicious GIF files with large width or height values as image data or URLs.
Workaround
This vulnerability can be mitigated by sanitizing image data or URLs before passing them to the affected methods.
PoC
import { jsPDF } from "jspdf"
// malicious GIF image data with large width/height headers
const payload = ...
const doc = new jsPDF();
doc.addImage(payload, "GIF", 0, 0, 100, 100);