CVE-2026-53520
Nezha Monitoring: Authenticated users can claim the dashboard Host through NAT and preempt all dashboard routing
Description
Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 2.0.14 to before version 2.1.0, authenticated users can claim the dashboard Host through NAT and preempt all dashboard routing. This issue has been patched in version 2.1.0.
INFO
Published Date :
June 12, 2026, 10:16 p.m.
Last Modified :
Oct. 25, 2026, 11:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE |
Solution
- Update Nezha Monitoring to version 2.1.0.
- Ensure dashboard access is properly authenticated.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-53520.
| URL | Resource |
|---|---|
| https://github.com/nezhahq/nezha/security/advisories/GHSA-x6fg-52vr-hj4w | |
| https://github.com/nezhahq/nezha/security/advisories/GHSA-x6fg-52vr-hj4w |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53520 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-53520
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-53520 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53520 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 25, 2026
Action Type Old Value New Value Added Translation Title: nezha de nezhahq, Description: Nezha Monitoring es una herramienta autoalojable, ligera, de monitoreo de servidores y sitios web, y de O&M. Desde la versión 2.0.14 hasta antes de la versión 2.1.0, los usuarios autenticados pueden reclamar el Host del panel de control a través de NAT y tomar el control de todo el enrutamiento del panel de control. Este problema ha sido parcheado en la versión 2.1.0. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'nezhahq', 'product': 'nezha', 'versions': [{'status': 'affected', 'version': '>= 2.0.14, < 2.1.0'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-53520', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-15T13:01:12.587436Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 15, 2026
Action Type Old Value New Value Added Reference https://github.com/nezhahq/nezha/security/advisories/GHSA-x6fg-52vr-hj4w -
New CVE Received by [email protected]
Jun. 12, 2026
Action Type Old Value New Value Added Description Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 2.0.14 to before version 2.1.0, authenticated users can claim the dashboard Host through NAT and preempt all dashboard routing. This issue has been patched in version 2.1.0. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-284 Added Reference https://github.com/nezhahq/nezha/security/advisories/GHSA-x6fg-52vr-hj4w