CVE-2026-101085
Nezha before 2.3.8 Denial of Service via Alert Rule
- State
- Published
- Severity
- 7.1 High
- Published
- Sep 27, 2026
- Updated
- Sep 28, 2026
- Reserved
- Sep 27, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-197 Numeric Truncation Error
Affected Products
| Product | Versions |
|---|---|
nezhanezhahq |
|
References
- GitHub Security Advisory (GHSA-2qc6-x993-hjq9)vendor-advisory
- VulnCheck Advisory: Nezha before 2.3.8 Denial of Service via Alert Rulethird-party-advisory
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