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CVE-2026-46370— Fleet has observer-level enrollment secret extraction via ORDER BY oracle on labels host-listing endpoint

Quick assessment

Affected
fleetdm fleet
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.

Fleet Device Management Fleet是Fleet Device Management公司开源的一套主机监控平台。 Fleet Device Management Fleet 4.84.1及之前版本存在安全漏洞，该漏洞源于labels主机列表端点（GET /api/v1/fleet/labels/{id}/hosts）对用户提供的order_key参数未进行验证，允许低权限的Observer角色通过排序预言提取主机注册密钥，可能导致攻击者冒充已注册主机、提交伪造查询结果和清单、获取待处

CVSS 6.5 · Medium EPSS 0.37% · P29

Affected Version Matrix 1

VendorProduct Version RangeStatus
fleetdm fleet < 4.84.2 affected
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I. Basic Information for CVE-2026-46370

Vulnerability Information
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Vulnerability Title
Fleet has observer-level enrollment secret extraction via ORDER BY oracle on labels host-listing endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
Fleet is an open-source device management platform built on osquery. In versions up to and including 4.84.1, the labels host-listing endpoint (GET /api/v1/fleet/labels/{id}/hosts) allowed an authenticated user with the lowest-privilege Observer role to extract host enrollment secrets through a sort-order oracle. The endpoint accepted a user-supplied order_key parameter that was not validated against a column allowlist, so an attacker with Global or Team Observer access could set the sort column to a sensitive field such as h.node_key and combine it with the cursor-based after parameter to binary-search the value one character at a time; the targeted value never appeared in the response, but the presence or absence of results revealed each character. Because node_key and orbit_node_key are the long-lived shared secrets that osquery and Orbit agents use to authenticate to the Fleet server, an attacker who reconstructed them could impersonate enrolled hosts, submit fabricated query results and inventory, retrieve pending scripts and MDM commands, and poison compliance and policy results across the deployment. This issue is fixed in version 4.84.2.
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
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Fleet Device Management Fleet 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fleet Device Management Fleet是Fleet Device Management公司开源的一套主机监控平台。 Fleet Device Management Fleet 4.84.1及之前版本存在安全漏洞，该漏洞源于labels主机列表端点（GET /api/v1/fleet/labels/{id}/hosts）对用户提供的order_key参数未进行验证，允许低权限的Observer角色通过排序预言提取主机注册密钥，可能导致攻击者冒充已注册主机、提交伪造查询结果和清单、获取待处
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
fleetdm fleet < 4.84.2 -

II. Public POCs for CVE-2026-46370

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III. Intelligence Information for CVE-2026-46370

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Vendor Advisories for CVE-2026-46370 (1)

Same Patch Batch · fleetdm · 2026-08-26 · 5 CVEs total

CVE-2026-54245 7.6 HIGH Fleet: SQL injection in Okta conditional access endpoint allows host-controlled compromise
CVE-2026-48786 6.5 MEDIUM Fleet: Observer-class users can view team enroll secrets and credential-bearing configurat
CVE-2026-46371 6.5 MEDIUM Fleet: Observer-level enrollment secret extraction via ORDER BY oracle on Apple MDM comman
CVE-2026-41262 4.3 MEDIUM Fleet: Cross-Team Policy Data Exposure via Global Policy Read Endpoint

IV. Related Vulnerabilities

Same product: fleet
Same vendor: fleetdm
Same weakness: CWE-89

V. Comments for CVE-2026-46370

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