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CVE-2026-16766

9.8 · CRITICAL

Catalyst::View::Wkhtmltopdf versions before 0.6.1 for Perl allow shell command injection (RCE) via PDF render options.

Published Jul 25, 2026CWE-78EPSS 2.57%

Overview

CVE-2026-16766 is a critical-severity vulnerability. It was published on July 25, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Catalyst::View::Wkhtmltopdf versions before 0.6.1 for Perl allow shell command injection (RCE) via PDF render options.

Options are passed directly to the wkhtmltopdf command without sanitization.

Any web application that passes user-controlled options such as the page_size, orientation or margins without validation allows shell command injection.

Version 0.6.0 was released with an incomplete fix for this issue.

Note that the wkhtmltopdf project is no longer being developed, and users of this package should migrate to alternative solutions.

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/mc7244/Catalyst-View-Wkhtmltopdf/issues/6GitHubgithub.com/robrwo/Catalyst-View-Wkhtmltopdf/security/advisories/GHSA-42w4-jj8w-6p98Refmetacpan.org/release/RRWO/Catalyst-View-Wkhtmltopdf-v0.6.1/changesRefwkhtmltopdf.org/status.htmlRefwww.openwall.com/lists/oss-security/2026/07/25/4

How CyberStrike helps

Frequently asked questions

What is CVE-2026-16766?

CVE-2026-16766 is a critical-severity vulnerability. It was published on July 25, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-16766?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-16766?

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-2026-16766?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-16766 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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