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CVE-2026-34376

7.5 · HIGH

PdfDing is a selfhosted PDF manager, viewer and editor offering a seamless user experience on multiple devices.

Published Apr 1, 2026CWE-863EPSS 0.49%

Overview

CVE-2026-34376 is a high-severity vulnerability. It was published on April 1, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

PdfDing is a selfhosted PDF manager, viewer and editor offering a seamless user experience on multiple devices. Prior to version 1.7.0, an access-control vulnerability allows unauthenticated users to retrieve password-protected shared PDFs by directly calling the file-serving endpoint without completing the password verification flow. This results in unauthorized access to confidential documents that users expected to be protected by a shared-link password. This issue has been patched in version 1.7.0.

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/mrmn2/PdfDing/commit/ae579ea98c5603d1435e0d90e81d72151564088aGitHubgithub.com/mrmn2/PdfDing/pull/294GitHubgithub.com/mrmn2/PdfDing/releases/tag/v1.7.0GitHubgithub.com/mrmn2/PdfDing/security/advisories/GHSA-42x7-vvj4-4cj3

How CyberStrike helps

Frequently asked questions

What is CVE-2026-34376?

CVE-2026-34376 is a high-severity vulnerability. It was published on April 1, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-34376?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-34376?

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-2026-34376?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-34376 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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