EUVD-2026-71146
GHSA-p2hj-fj2f-79j4
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Low-privilege authentication required (PR:L); pure confidentiality impact (C:H) with no integrity or availability effect; no user interaction needed.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
3DescriptionCVE.org
Documenso 2.17.0 contains an access control vulnerability in the PDF-serving endpoint that fails to validate document visibility settings. Attackers with low privileges can read restricted documents within their team or cross-tenant by leveraging missing ownership validation on document data identifiers.
AnalysisAI
Documenso 2.17.0's PDF-serving endpoint fails to enforce document visibility settings or validate ownership of document data identifiers, allowing authenticated low-privilege users to retrieve restricted documents belonging to other users - including across organizational tenant boundaries. The flaw is pinned to files.helpers.ts in the Remix server layer and is tracked via VulnCheck advisory and GitHub issue #3112. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires a valid low-privilege authenticated account on the target Documenso 2.17.0 instance (PR:L per CVSS 4.0 vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 7.1 (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H) is consistent with a low-complexity, network-reachable authorization bypass requiring only a valid low-privilege account, with high confidentiality impact and no integrity or availability consequence. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No patched version number is confirmed in the available references at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all Documenso 2.17.0 deployments, pull access logs for the past 30 days, and audit user account access patterns to identify unauthorized document retrievals. …
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Unauthenticated file upload in Documenso before 2.13.0 exposes the /api/files/upload-pdf endpoint to any remote actor wi
Google OAuth login in Documenso through version 2.11.0 fails to enforce two-factor authentication during the OAuth callb
Same weakness CWE-863 – Incorrect Authorization
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External POC / Exploit Code
Leaving vuln.today