---
id: CVE-2026-101085
title: >-
  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
summary: >-
  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 c…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-197
vendor: nezhahq
product: nezha
affected:
  - nezha < 2.3.8
published: '2026-09-27'
updated: '2026-09-27'
sourceUpdated: '2026-09-27T21:17:02.307'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101085'
references:
  - url: 'https://github.com/nezhahq/nezha/security/advisories/GHSA-2qc6-x993-hjq9'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/nezha-before-2.3.8-denial-of-service-via-alert-rule
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-27T20:58:01.542Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.