CVE-2026-120046

Medium

Description

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.

SeverityMedium

CVSS5.3

Exploit probability—

ProductNezha

PublishedOct 30, 2026

First seenNov 4, 2026

Weakness typeCWE-476NULL pointer dereference

How to fix

Update

nezhahq nezha2.4.0 or later

Patches

github.com/nezhahq/nezha/commit/efd3e07b901d6acf7ef2ab3b26458cc07e7605dc

Vendor advisories

github.com/nezhahq/nezha/releases/tag/v2.4.0

Affected products

Product	Affected versions	Fixed in
nezhahq nezha	2.0.0 ≤ v < 2.4.0	2.4.0

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