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

Quick assessment

Affected
nezhahq nezha
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

哪吒监控面板（Nezha Dashboard）在 2.3.5 版本之前，未对服务监控任务类型限制为支持的探针类型。这使得拥有 权限范围的身份验证用户能够通过服务 API 提交特权任务类型。攻击者可利用服务监控与特权操作之间共享的 Protobuf 命名空间，向其授权范围内的智能探针（Agent）投送命令执行或智能探针配置任务。

CVSS 6.5 · Medium
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I. Basic Information for CVE-2026-101086

Vulnerability Information
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Vulnerability Title
Nezha Dashboard before 2.3.5 Task Type Validation Bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
nezhahq nezha 0 ~ 2.3.5 -

II. Public POCs for CVE-2026-101086

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III. Intelligence Information for CVE-2026-101086

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Vendor Advisories for CVE-2026-101086 (1)

Other References for CVE-2026-101086 (2)

Same Patch Batch · nezhahq · 2026-09-27 · 6 CVEs total

CVE-2026-101090 9.8 CRITICAL Nezha through 2.2.3 Host Header Injection via OAuth2 redirect_uri
CVE-2026-101085 6.5 MEDIUM Nezha before 2.3.8 Denial of Service via Alert Rule
CVE-2026-101088 5.3 MEDIUM Nezha before 2.3.1 Denial of Service via Concurrent Server Delete
CVE-2026-101087 4.3 MEDIUM Nezha 2.0.10 through 2.3.2 SSRF Denylist Bypass IPv6
CVE-2026-101089 3.1 LOW Nezha before 2.2.7 Information Disclosure via /api/v1/profile

IV. Related Vulnerabilities

Same product: nezha
Same vendor: nezhahq
Same weakness: CWE-269

V. Comments for CVE-2026-101086

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