CVE-2026-59943
Description
Dompdf is an HTML to PDF converter for PHP. In versions 3.15 and prior, if a malicious actor can supply unrestricted content for rendering by Dompdf they can utilize the SVG rendering functionality to leak filesystem information when rendering PDF files using image references within a data-URI encoded SVG document. Using an <image> element inside a data-URI embedded SVG, an attacker can attempt to embed other files via the href or xlink:href attributes. When processing a file that does not exist (e.g. file:///DOESNOTEXIST), dompdf behaves differently than it does when accessing a file or directory that actually exists on the filesystem. This issue has been fixed in version 3.16.
How to fix
- dompdf_project dompdf3.1.6 or later
- dompdf/dompdf3.1.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| dompdf_project dompdf | v < 3.1.6 | 3.1.6 |
| dompdf/dompdfPackagist | v < 3.1.6 | 3.1.6 |
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Attack Surface Management
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