CVE-2026-120046
Nezha 2.0.0 before 2.4.0 Startup NULL Pointer Dereference via Orphaned Service History
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
Nezha 2.0.0 before 2.4.0 contains a NULL pointer dereference vulnerability in ServiceSentinel.loadTodayStats that allows authenticated users to crash the dashboard by deleting a service. Attackers can delete their own service via POST /api/v1/batch-delete/service, leaving orphaned service_histories rows that crash the non-TSDB dashboard on its next startup until removed manually.
| CWE | CWE-476 |
| Vendor | nezhahq |
| Product | nezha |
| Published | Oct 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
nezhahq / nezha
2.0.0 < 2.4.0
References
github.com: https://github.com/nezhahq/nezha/commit/efd3e07b901d6acf7ef2ab3b26458cc07e7605dc github.com: https://github.com/nezhahq/nezha/releases/tag/v2.4.0 github.com: https://github.com/nezhahq/nezha/blob/9881c47f0cc92256ba203919da5a25fab79a6bad/service/singleton/servicesentinel.go#L434 github.com: https://github.com/nezhahq/nezha/blob/9881c47f0cc92256ba203919da5a25fab79a6bad/cmd/dashboard/controller/service.go#L639 github.com: https://github.com/nezhahq/nezha vulncheck.com: https://www.vulncheck.com/advisories/nezha-2.0.0-before-2.4.0-startup-null-pointer-dereference-via-orphaned-service-history
Credits
Zachariah Mithani (AploSec) naiba