CVE-2026-120046 json
Nezha 2.0.0 before 2.4.0 Startup NULL Pointer Dereference via Orphaned Service History
published 2026-10-30 9 d ago modified 2026-11-05 4 d ago also EUVD-2026-114328
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 22%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- nezhahq nezha 2.4.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 d ago
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.0 | CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 6.0 | CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- nezhahq nezha
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
-
github.com
/nezhahq/nezha/commit/efd3e07b901d6acf7ef2ab3b26458cc07e7605dc
patch
-
github.com
/nezhahq/nezha/releases/tag/v2.4.0
release-notes
-
github.com
/nezhahq/nezha/blob/9881c47f0cc92256ba203919da5a25fab79a6bad/service/singleton/servicesentinel.go#L434
technical-description
-
github.com
/nezhahq/nezha/blob/9881c47f0cc92256ba203919da5a25fab79a6bad/cmd/dashboard/controller/service.go#L639
technical-description
-
github.com
/nezhahq/nezha
product
-
vulncheck.com
/advisories/nezha-2.0.0-before-2.4.0-startup-null-pointer-dereference-via-orphaned-service-history
third-party-advisory
Sources
- CVE List CVE-2026-120046
- NVD CVE-2026-120046
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