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CVE-2026-106443

8.8 · HIGH

WeasyPrint helps web developers to create PDF documents.

Published Oct 6, 2026CWE-20EPSS 0.92%

Overview

CVE-2026-106443 is a high-severity vulnerability. It was published on October 6, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/Kozea/WeasyPrint/commit/39cd37ce1610bd890388e26591c569db1cbab542GitHubgithub.com/Kozea/WeasyPrint/releases/tag/v70.0GitHubgithub.com/Kozea/WeasyPrint/security/advisories/GHSA-r543-q48m-4c9j

How CyberStrike helps

Frequently asked questions

What is CVE-2026-106443?

CVE-2026-106443 is a high-severity vulnerability. It was published on October 6, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-106443?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-106443?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-106443?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-106443 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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