CVE-2026-49397

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

State: Published
Severity: 5.3 Medium
Published: Jun 12, 2026
Updated: Jun 15, 2026
Reserved: May 29, 2026

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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.

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	GitHub_M

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-285 Improper Authorization
CWE-863 Incorrect Authorization

Affected Products

Product	Versions
nezhanezhahq	>= 2.0.0, < 2.0.14Affected

References

https://github.com/nezhahq/nezha/security/advisories/GHSA-vrmh-5mmx-hjwx

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