CVE-2026-101085

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 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.

Affected Software

Weaknesses

• CWE-197: Numeric Truncation Error

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://github.com/nezhahq/nezha/security/advisories/GHSA-2qc6-x993-hjq9

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

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