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CVE-2026-86418— MISP Dashboard Organisation Picker Exposes Hidden Organisation Metadata to Unauthorized Users

Quick assessment

Affected
MISP MISP
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.

MISP是MISP组织开源的一个威胁情报共享与分析平台。 MISP 2.5.45及之前版本存在安全漏洞，该漏洞源于仪表盘组织选择器未应用与正常组织索引相同的可见性限制，暴露了组织ID、UUID和名称，可能导致经过身份验证的用户发现本应对其隐藏的组织。

CVSS 2.3 · Low EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
MISP MISP ≤ 2.5.45 affected
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I. Basic Information for CVE-2026-86418

Vulnerability Information
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Vulnerability Title
MISP Dashboard Organisation Picker Exposes Hidden Organisation Metadata to Unauthorized Users
Source: CVE Program / CVE List V5
Vulnerability Description
Affected versions of MISP expose organisation metadata through the dashboard organisation picker without applying the same visibility restrictions enforced by the normal organisation index and per-organisation view. The affected endpoint returned fields including:  - organisation ID;  - UUID;  - name. When Security.hide_organisation_index_from_users was enabled, normal organisation enumeration was restricted, but the dashboard picker still queried all organisations. This allowed authenticated users to discover organisations that should have remained hidden from them. The fix calls Organisation::createConditions($this->Auth->user()) and appends the resulting ACL conditions to the picker query. Ordinary users are thereby limited to organisations associated with events or proposals they can already see, plus their own organisation, while users with the appropriate sharing-group privilege retain broader visibility. Version affected: ≤2.5.45
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
MISP 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MISP是MISP组织开源的一个威胁情报共享与分析平台。 MISP 2.5.45及之前版本存在安全漏洞，该漏洞源于仪表盘组织选择器未应用与正常组织索引相同的可见性限制，暴露了组织ID、UUID和名称，可能导致经过身份验证的用户发现本应对其隐藏的组织。
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
MISP MISP 0 ~ 2.5.45 -

II. Public POCs for CVE-2026-86418

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III. Intelligence Information for CVE-2026-86418

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Patches & Fixes for CVE-2026-86418 (1)

Same Patch Batch · MISP · 2026-09-07 · 11 CVEs total

CVE-2026-86452 8.7 HIGH MISP Unauthenticated Mail Endpoints Allow Unbounded Storage Consumption and Request Floodi
CVE-2026-86347 7.1 HIGH MISP Missing Authorization on Template File Upload Allows Authenticated Disk Exhaustion
CVE-2026-86408 7.1 HIGH MISP Missing Authorization in Cryptographic Key View Exposes Signing Keys from Protected E
CVE-2026-86419 7.0 HIGH MISP Insufficient Outbound URL Validation Allows SSRF and Credential Disclosure via Feed R
CVE-2026-86342 5.3 MEDIUM MISP Freetext Feed Preview Improper Authorization Exposes Restricted Event and Feed Inform
CVE-2026-86417 5.3 MEDIUM MISP Dashboard Template REST API Exposes Template Owner Email Addresses to Unauthorized Us
CVE-2026-86451 5.3 MEDIUM MISP Event Graph Object Reference Lookup Exposes References from Unauthorized Objects
CVE-2026-86351 5.1 MEDIUM MISP User Homepage Validation Allows Authenticated Open Redirect via Protocol-Relative URL
CVE-2026-86440 5.1 MEDIUM MISP Dashboard Button Widget Allows Stored XSS via Unsafe javascript: and Backslash URLs
CVE-2026-86441 2.3 LOW MISP Dashboard Organisation Widgets Bypass Organisation-Index Restrictions and Expose Hidd

IV. Related Vulnerabilities

Same product: MISP
Same vendor: MISP
Same weakness: CWE-200

V. Comments for CVE-2026-86418

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