CVE-2026-101086 nezhahq CVE debrief

Who should care

Defenders responsible for Nezha Dashboard deployments should assess exposure and verify versions, focusing on service monitor task type validation and user access controls. They should also review compensating controls for exposed systems, monitor for suspicious task submissions, and track exceptions and retest remediated assets.

Why it matters

CVE-2026-101086 allows authenticated users to submit privileged tasks in Nezha Dashboard versions before 2.3.5, potentially leading to command execution or Agent configuration changes within their authorization scope.

• Verify Nezha Dashboard version and update to 2.3.5 or later.
• Restrict service monitor task types to supported probe types.
• Monitor for suspicious task submissions by authenticated users.

Technical summary

CVE-2026-101086 is a vulnerability in Nezha Dashboard versions before 2.3.5, allowing authenticated users with nezha:service:write scope to submit privileged task types through the service API. This could lead to command execution or Agent configuration tasks within their authorization scope. The vulnerability arises from the shared protobuf Task.Type namespace between service monitors and privileged operations, enabling attackers to deliver command execution or Agent configuration tasks to Agents within their authorization scope.

Defensive priority

Defenders should prioritize verifying Nezha Dashboard versions before 2.3.5 for vulnerability to CVE-2026-101086, focusing on service monitor task type validation.

Recommended defensive actions

• Verify Nezha Dashboard version and update to 2.3.5 or later if vulnerable.
• Restrict service monitor task types to supported probe types.
• Monitor for suspicious task submissions by authenticated users.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability in Nezha Dashboard versions before 2.3.5, which allows authenticated users to submit privileged task types. Official sources include CVE Program and NIST NVD records.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.