CVE-2026-94393— MISP Event Report Cross-Event Reparenting via Unscoped UUID Resolution in editReport
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.
When a user creates or edits a report inside an event, MISP can identify an existing report using its UUID without properly checking whether that report actually belongs to the same event. As a result, a user who has editing rights on one event could potential
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I. Basic Information for CVE-2026-94393
Vulnerability Information
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Vulnerability Title
MISP Event Report Cross-Event Reparenting via Unscoped UUID Resolution in editReport
Source: CVE Program / CVE List V5
Vulnerability Description
When a user creates or edits a report inside an event, MISP can identify an existing report using its UUID without properly checking whether that report actually belongs to the same event.
As a result, a user who has editing rights on one event could potentially move a report from another event into their own event, as long as they know or can guess the report’s UUID. Once moved, they could view and change information that they were not originally allowed to access.
The vulnerability requires the attacker to have editor access to at least one event and to know or discover a valid report UUID.
The main impact is that private event reports could be exposed or modified across event boundaries, bypassing MISP’s normal access restrictions.
Version affected: <2.5.47
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-94393
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2026-94393 (1)
Same Patch Batch · MISP · 2026-09-21 · 11 CVEs total
| CVE-2026-94381 | 8.7 HIGH | MISP Privilege Escalation: Read-Only API Key User Can Regain Full Role via updateLoginTime |
| CVE-2026-94383 | 8.6 HIGH | MISP Blocklist Workflow Module: Arbitrary Script Execution via Unrestricted File Extension |
| CVE-2026-94401 | 8.3 HIGH | MISP Arbitrary Local File Read and SSRF via MISP Export Upload |
| CVE-2026-94374 | 8.3 HIGH | MISP: IDOR via Client-Supplied Report ID in Module Results Processing Allows Reparenting a |
| CVE-2026-94404 | 7.1 HIGH | MISP CSRF vulnerability allows unauthorized attribute modification |
| CVE-2026-94379 | 6.9 MEDIUM | MISP: HTTP Method Bypass of Login Security Controls (Bruteforce Protection and Email OTP) |
| CVE-2026-94277 | 6.3 MEDIUM | Stored Cross-Site Scripting in MISP Galaxy Matrix Statistics via Unescaped Galaxy Name |
| CVE-2026-94372 | 6.3 MEDIUM | Stored Cross-Site Scripting via Unescaped Galaxy Cluster Tag Names in MISP Default Theme G |
| CVE-2026-94394 | 6.3 MEDIUM | MISP ObjectReferencesController: Granular Distribution and Sharing Group Restrictions Bypa |
| CVE-2026-94373 | 6.3 MEDIUM | MISP DOM-based Cross-Site Scripting via innerHTML in Contextual Menu |
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Same vendor: MISP
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Same weakness: CWE-639
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V. Comments for CVE-2026-94393
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