High severity · published Jun 12, 2026
CVE-2026-49396
Nezha Monitoring: Cross-site GET request can trigger stored cron commands on a victim's agents
7.1
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NE
nezha · nezhahq
>= 1.0.0, < 2.0.14 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-49396
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-49396
github.com
https://github.com/nezhahq/nezha/security/advisories/GHSA-8qhj-4f8c-j8qg
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