Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-86417— MISP Dashboard Template REST API Exposes Template Owner Email Addresses 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 受影响版本中， 对电子邮件地址可见性的执行不一致。 该查询始终会获取 字段，而信息脱敏（隐藏处理）仅在非 REST 的渲染分支中执行。结果是，同一位已认证用户在常规 HTML 界面中看到的是经过脱敏的数据，但通过请求 REST/JSON 表示时，却能够绕过预期的权限检查，获取到模板所有者的电子邮件地址。 修复方案将权限判断逻辑迁移至集中式的 授权辅助函数。现在，只有当请求者是站点管理员，或实例显式启用了 配置时，才会获取电子邮件地址。该辅助函数也被其他仪表盘组件复用，以确保电子邮件披露策略的一致性。 受影

CVSS 5.3 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
MISP MISP ≤ 2.5.45 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-86417

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
MISP Dashboard Template REST API Exposes Template Owner Email Addresses to Unauthorized Users
Source: CVE Program / CVE List V5
Vulnerability Description
Affected versions of MISP inconsistently enforced email-address visibility in DashboardsController::listTemplates(). The query always fetched User.email, while redaction happened only inside the non-REST rendering branch. As a result, the same authenticated user who saw redacted data in the normal HTML interface could request the REST/JSON representation and receive template owners’ email addresses without the intended privilege check. The fix moves the decision to a centralized User::canSeeEmails() authorization helper. Email addresses are now fetched only when the requester is a site administrator or the instance explicitly enables Security.disclose_user_emails. The same helper is also reused by other dashboard widgets to keep email-disclosure policy consistent. Version affected: ≤2.5.45
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/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

Affected Products

Vendor Product Affected Versions CPE Subscribe
MISP MISP 0 ~ 2.5.45 -

II. Public POCs for CVE-2026-86417

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-86417

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-86417 (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-2026-86451 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-2026-86418 2.3 LOW MISP Dashboard Organisation Picker Exposes Hidden Organisation Metadata to Unauthorized Us
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-2026-86417

No comments yet

Leave a comment