CVE-2026-34376
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.37%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.37% probability · 30th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-863
- Affected
- pdfding/pdfding
- Source
- security-advisories@github.com
References
- https://github.com/mrmn2/PdfDing/commit/ae579ea98c5603d1435e0d90e81d72151564088aPatch
- https://github.com/mrmn2/PdfDing/pull/294Issue Tracking, Patch
- https://github.com/mrmn2/PdfDing/releases/tag/v1.7.0Product, Release Notes
- https://github.com/mrmn2/PdfDing/security/advisories/GHSA-42x7-vvj4-4cj3Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.