CVE-2026-101086 Nezha Dashboard before 2.3.5 Task Type Validation Bypass
Authenticated users can bypass task type restrictions to execute arbitrary commands or modify agent configurations on monitored systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-101086?
CVE-2026-101086 is a high-severity vulnerability in nezhahq nezha, published on 27 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-269
Which versions are affected by CVE-2026-101086?
How do I fix CVE-2026-101086?
No fix has been published for CVE-2026-101086 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-101086 being exploited?
There is no known exploitation of CVE-2026-101086 in the wild and no public exploit code.
Sources
Also known as GHSA-99pj-qr9x-4gmp, GHSA-grrw-fx36-fv32.