CVE-2026-46717CWE-863CWE-918

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

High · published June 12, 2026

CVSS v3.1
7.7
EPSS
0%
Percentile
29.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00370 · 29.8th percentile
Weaknesses
CWE-863 · Incorrect Authorization; CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-06-12T21:02Z
EPSS history
Timeline
  • 12 JUN 21:02Z
    Nezha Monitoring: RoleMember-reachable SSRF with full response-body reflection via POST /api/v1/notification
    cvelistv5