CVE-2026-106443

WeasyPrint helps web developers to create PDF documents. Prior to 70.0, the image-loading path in weasyprint/images.py passes fetched image bytes from HTML img URLs, CSS image values, SVG image references, and data URIs to Pillow's generic image dispatcher without excluding EPS or PostScript formats. On hosts with Ghostscript installed, Pillow EpsImagePlugin invokes the interpreter for attacker-controlled PostScript, which can produce interpreter-permitted effects and can lead to remote code execution when the installed Ghostscript version has a usable sandbox bypass. Hosts without Ghostscript do not reach this rasterization path. This issue is fixed in version 70.0.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/Kozea/WeasyPrint/commit/39cd37ce1610bd890388e26591c569db1cbab542
https://github.com/Kozea/WeasyPrint/releases/tag/v70.0
https://github.com/Kozea/WeasyPrint/security/advisories/GHSA-r543-q48m-4c9j

Configurations

No configuration.

History

06 Oct 2026, 19:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-06 19:18

Updated : 2026-10-06 20:17

NVD link : CVE-2026-106443

Mitre link : CVE-2026-106443

CVE.ORG link : CVE-2026-106443

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

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