CVE-2026-34586 Details
Description
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.
A vulnerability in PdfDing versions prior to 1.7.1 allows users to access shared PDF content through the Serve and Download endpoints, even after the content has expired, reached its maximum views, or been soft-deleted. This issue arises because the function check_shared_access_allowed() only verifies the existence of a session, without checking the shared PDF's status regarding inactivity or deletion. The vulnerability can be exploited by creating a session and accessing the endpoints with shared PDFs that have expired, exceeded their view limit, or been marked for deletion.
Users can update to PdfDing version 1.7.1, which includes the necessary checks for shared PDF inactivity and deletion in the access validation function.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 3, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/mrmn2/PdfDing/commit/a6783b259b25c839c52c6f2380333827a52e89eb | [email protected] | Patch |
| https://github.com/mrmn2/PdfDing/releases/tag/v1.7.1 | [email protected] | ProductRelease Notes |
| https://github.com/mrmn2/PdfDing/security/advisories/GHSA-vfqx-2464-38wf | [email protected] | ExploitMitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-863 | Incorrect Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| pdfding pdfding | < 1.7.1 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 13, 2026 | Initial Analysis | [email protected] |
| Mar 31, 2026 | New CVE Received | [email protected] |