CVE-2026-101085

Description

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 Vector

References

• 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