Vulnerability · Published Sep 27, 2026 · Assigned by VulnCheck

CVE-2026-101086Nezha Dashboard before 2.3.5 Task Type Validation Bypass

Medium 6.5

In plain English

A medium-severity privilege mismanagement in nezha from nezhahq. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.3%top 74.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Nezha Dashboard versions before 2.3.5 fail to restrict service monitor task types to supported probe types, allowing authenticated users with nezha:service:write scope to submit privileged task types through the service API. Attackers can deliver command execution or Agent configuration tasks to Agents within their authorization scope by exploiting the shared protobuf Task.Type namespace between service monitors and privileged operations.

Affected products (as reported)

Vendor	Product	Versions
nezhahq	nezha	0 – before 2.3.5

Weakness: CWE-269 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

GitHub Security Advisory (GHSA-grrw-fx36-fv32) vendor-advisory
Patch Commit patch
VulnCheck Advisory: Nezha Dashboard before 2.3.5 Task Type Validation Bypass third-party-advisory