High severity · published Jun 12, 2026
CVE-2026-46717
Nezha Monitoring: RoleMember-reachable SSRF with full response-body reflection via POST /api/v1/notification
7.7
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NE
nezha · nezhahq
>= 1.4.0, < 2.0.8 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46717
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-46717
github.com
https://github.com/nezhahq/nezha/security/advisories/GHSA-w4g9-mxgg-j532
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