EUVD-2026-83653
GHSA-75h8-hx74-6qmf
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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
Primary rating from Vendor (VulDB) · only source for this CVE.
CVSS VectorVendor: VulDB
Lifecycle Timeline
3DescriptionCVE.org
A vulnerability was detected in NginxProxyManager nginx-proxy-manager up to 2.15.1. This impacts the function internalCertificate.validate of the file backend/internal/certificate.js of the component Validate Route. The manipulation results in missing authentication. The attack can be launched remotely. The exploit is now public and may be used. Endpoint only processes and echoes back the certificate the caller submits (no stored data leaked); the real risk is unauthenticated openssl processing of attacker input. The project was informed of the problem early through an issue report but has not responded yet.
AnalysisAI
The certificate validation route in Nginx Proxy Manager through 2.15.1 (internalCertificate.validate in backend/internal/certificate.js) is reachable without authentication, letting any remote caller submit arbitrary certificate material to the backend. Publicly available exploit code exists, but the project has not responded to the early issue report, so no fixed release is confirmed; the practical impact is constrained because the endpoint parses and echoes back only the certificate the caller supplied rather than returning stored data, leaving malformed-input handling in the OpenSSL parsing path as the main residual concern. …
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Vulnerability AssessmentAI
| Risk Assessment | This is a moderate-priority issue that the raw 6.9 CVSS 4.0 score somewhat overstates. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Remediation | No vendor-released patch was identified at the time of analysis: the project was informed early via https://github.com/NginxProxyManager/nginx-proxy-manager/issues/5594 and had not responded, and no fixed release version is present in the available data. … Detailed patch versions, workarounds, and compensating controls in full report. |
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The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly handle Heartbeat Extension packe
The dtls1_reassemble_fragment function in d1_both.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0
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Same technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today