CVE-2026-46717

Nezha Monitoring: RoleMember-reachable SSRF with full response-body reflection via POST /api/v1/notification

Published Jun 12, 2026 CVSS 3.1 · 7.7 High EPSS < 1% KEV · Not listed
Description
Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.4.0 to before version 2.0.8, nezha's dashboard supports two user roles: RoleAdmin (Role==0) and RoleMember (Role==1). The notification routes POST /api/v1/notification and PATCH /api/v1/notification/:id are wired through commonHandler rather than adminHandler — so a RoleMember user can call them. These handlers synchronously Send() an HTTP request to a user-controlled URL and reflect the entire response body (no size limit) back to the caller on any non-2xx response. This issue has been patched in version 2.0.8.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-w4g9-mxgg-j532 Nezha Monitoring: RoleMember-reachable SSRF with full response-body reflection via POST /api/v1/notification
History
Type Values Removed Values Added
First Time appeared Nezhahq
Nezhahq nezha
Vendors & Products Nezhahq
Nezhahq nezha
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.4.0 to before version 2.0.8, nezha's dashboard supports two user roles: RoleAdmin (Role==0) and RoleMember (Role==1). The notification routes POST /api/v1/notification and PATCH /api/v1/notification/:id are wired through commonHandler rather than adminHandler — so a RoleMember user can call them. These handlers synchronously Send() an HTTP request to a user-controlled URL and reflect the entire response body (no size limit) back to the caller on any non-2xx response. This issue has been patched in version 2.0.8.
Title Nezha Monitoring: RoleMember-reachable SSRF with full response-body reflection via POST /api/v1/notification
Weaknesses CWE-863
CWE-918
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jun 13, 2026, 3:38 AM
Reserved
May 15, 2026, 11:26 PM
Status
Deferred
Published
Jun 12, 2026, 10:16 PM
Modified
Oct 25, 2026, 11:10 PM