CVE-2026-49396
Nezha Monitoring: Cross-site GET request can trigger stored cron commands on a victim's agents
Description
Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.0.0 to before version 2.0.14, cross-site GET request can trigger stored cron commands on a victim's agents. This issue has been patched in version 2.0.14.
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 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Update Nezha Monitoring to version 2.0.14 or later.
- Ensure agents are updated to the patched version.
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-2026-49396.
| URL | Resource |
|---|---|
| https://github.com/nezhahq/nezha/security/advisories/GHSA-8qhj-4f8c-j8qg | |
| https://github.com/nezhahq/nezha/security/advisories/GHSA-8qhj-4f8c-j8qg |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-49396 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-2026-49396
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-2026-49396 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-49396 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 1.0.0 hasta antes de la versión 2.0.14, una solicitud GET entre sitios puede desencadenar comandos cron almacenados en los agentes de una víctima. Este problema ha sido parcheado en la versión 2.0.14. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'nezhahq', 'product': 'nezha', 'versions': [{'status': 'affected', 'version': '>= 1.0.0, < 2.0.14'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-49396', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-13T03:40:13.195038Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 13, 2026
Action Type Old Value New Value Added Reference https://github.com/nezhahq/nezha/security/advisories/GHSA-8qhj-4f8c-j8qg -
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 1.0.0 to before version 2.0.14, cross-site GET request can trigger stored cron commands on a victim's agents. This issue has been patched in version 2.0.14. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L Added CWE CWE-352 Added Reference https://github.com/nezhahq/nezha/security/advisories/GHSA-8qhj-4f8c-j8qg