Medium 6.5Published Mar 31, 2026

CVE-2026-34586PdfDing: Shared PDF Expiration, Max Views, and Deletion Bypass via Serve/Download Endpoints

Updated under an hour ago (Oct 26, 2026, 5:40 PM ET)

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It affects mrmn2 PdfDing and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for mrmn2 PdfDing

Exploited in the last 30 days

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.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Apr 3, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

mrmn2 PdfDing mrmn2:pdfding (from the name)	before 1.7.1	CNA record
pdfding pdfding pdfding:pdfding	before 1.7.1	NVD

References

References

https://github.com/mrmn2/PdfDing/security/advisories/GHSA-vfqx-2464-38wf	x-refsource-confirm, exploit, mitigation, vendor-advisory
https://github.com/mrmn2/PdfDing/commit/a6783b259b25c839c52c6f2380333827a52e89eb	x-refsource-misc, patch
https://github.com/mrmn2/PdfDing/releases/tag/v1.7.1	x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.