CVE-2026-49397

MEDIUM

Nezha Monitoring: Private services (`EnableShowInService: false`) are enumerable via per-server endpoints, leaking name and timing data

Title source: cna
STIX 2.1

Description

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 2.0.0 to before version 2.0.14, private services (`EnableShowInService: false`) are enumerable via per-server endpoints, leaking name and timing data. This issue has been patched in version 2.0.14.

References (1)

Core 1
Core References

Scores

CVSS v3 5.3
EPSS 0.0034
EPSS Percentile 25.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-200 CWE-285 CWE-863
Status published
Products (1)
nezhahq/nezha >= 2.0.0, < 2.0.14
Published Jun 12, 2026
Tracked Since Jun 13, 2026