---
cve: "CVE-2026-59943"
severity: "MEDIUM"
cvss: 6.3
epss: "26%"
vendor: "dompdf"
kev: false
exploited: false
published: "2026-07-28 21:17:29"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T11:04:23+02:00"
---

# CVE-2026-59943

> 6.3 MEDIUM · 🧪 PoC

## Beschreibung

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  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.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 6d4b4eb8500f7a786da8868ba463a71b725a4005 (Commit)
- 6a58996865db05d8fede748507e50ac4b8c5bfd0 (Commit)

## Referenzen

- <https://github.com/dompdf/dompdf/security/advisories/GHSA-j8qw-6jw8-r297>
- <https://github.com/dompdf/dompdf/commit/6a58996865db05d8fede748507e50ac4b8c5bfd0>
- <https://github.com/dompdf/dompdf/releases/tag/v3.1.6>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-59943) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_