CVE-2026-34586

Name: CVE-2026-34586
Creator: NVD / NIST
Published: 2026-03-31T21:16:31.123+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.29%

Last modified Jun 17, 2026

CVE-2026-34586 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.29%

21.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Pdfding	Pdfding	< 1.7.1

References

https://github.com/mrmn2/PdfDing/commit/a6783b259b25c839c52c6f2380333827a52e89ebPatch
https://github.com/mrmn2/PdfDing/releases/tag/v1.7.1Product, Release Notes
https://github.com/mrmn2/PdfDing/security/advisories/GHSA-vfqx-2464-38wfExploit, Mitigation, Vendor Advisory

Timeline

Published: Mar 31, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-34586?

How severe is CVE-2026-34586?

CVE-2026-34586 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.

How do I fix CVE-2026-34586?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-34586?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST