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Vulnerability record · CVE-2026-34376 · published 1 April 2026

CVE-2026-34376: Pdfding incorrect authorization vulnerability

Pdfding · Pdfding

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.

7.5 CVSS 3.1 High EPSS 0.49% · top 60.3% CWE-863 · Incorrect authorization
7.5CVSS 3.1 base score
0.49%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/mrmn2/PdfDing/commit/ae579ea98c5603d1435e0d90e81d72151564088a Patch
https://github.com/mrmn2/PdfDing/pull/294 Issue TrackingPatch
https://github.com/mrmn2/PdfDing/releases/tag/v1.7.0 ProductRelease Notes
https://github.com/mrmn2/PdfDing/security/advisories/GHSA-42x7-vvj4-4cj3 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-34376), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.