CVE-2026-34376 HIGH

CVE-2026-34376: PdfDing: Password-protected share bypass via direct serve endpoint

Vendor Mrmn2
Product PdfDing
Weakness CWE-863 · Incorrect authorization
Published April 1, 2026
Last update April 1, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 1, 2026 CVE published
April 1, 2026 Record updated