Vulnerability record · CVE-2026-34586 · published 31 March 2026

CVE-2026-34586: 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 1.7.1, check_shared_access_allowed() validates only session existence — it does not check SharedPdf.inactive (expiration / max views) or SharedPdf.deleted. The Serve and Download endpoints rely solely on this function, allowing previously-authorized users to access shared PDF content after expiration, view limit, or soft-deletion. This issue has been patched in version 1.7.1.

6.5 CVSS 3.1 Medium EPSS 0.42% · top 66.8% CWE-863 · Incorrect authorization

6.5CVSS 3.1 base score

0.42%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

3References, 1 tagged exploit

24 Jul 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:L/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.

Pdfding Pdfding

References

Link	Tags
https://github.com/mrmn2/PdfDing/commit/a6783b259b25c839c52c6f2380333827a52e89eb	Patch
https://github.com/mrmn2/PdfDing/releases/tag/v1.7.1	ProductRelease Notes
https://github.com/mrmn2/PdfDing/security/advisories/GHSA-vfqx-2464-38wf	ExploitMitigationVendor 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-2026-34586), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.