CVE-2026-101085

Nezha before 2.3.8 fails to validate alert rule type and duration bounds, allowing authenticated non-administrator users to create malformed rules that trigger unrecovered panics in the alert evaluator goroutine. Attackers can submit a crafted alert rule via the POST /api/v1/alert-rule endpoint to crash the dashboard process, which persists the rule and causes repeated crashes on restart, disabling all monitoring and control plane functionality.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/nezhahq/nezha/security/advisories/GHSA-2qc6-x993-hjq9
https://www.vulncheck.com/advisories/nezha-before-2.3.8-denial-of-service-via-alert-rule
https://github.com/nezhahq/nezha/security/advisories/GHSA-2qc6-x993-hjq9

Configurations

No configuration.

History

28 Sep 2026, 14:17

Type	Values Removed	Values Added
References	~~() https://github.com/nezhahq/nezha/security/advisories/GHSA-2qc6-x993-hjq9 -~~	() https://github.com/nezhahq/nezha/security/advisories/GHSA-2qc6-x993-hjq9 -

27 Sep 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-27 21:17

Updated : 2026-09-28 20:57

NVD link : CVE-2026-101085

Mitre link : CVE-2026-101085

CVE.ORG link : CVE-2026-101085

JSON object : View

Products Affected

No product.

CWE

CWE-197

Numeric Truncation Error

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