CVE-2026-56424— MISP 授权问题漏洞
一分钟漏洞结论
影响对象
misp misp
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
MISP是MISP组织开源的一套开源的软件解决方案。该产品用于收集、存储、分发、共享网络安全指标,并具有威胁网络安全事件分析和恶意软件分析等功能。 MISP 2.5.41及之前版本存在授权问题漏洞，该漏洞源于多个权限控制缺陷，即对错误实体进行授权检查或写路径上缺少所有权/可编辑性检查，可能导致具有相应功能权限的低权限认证用户被授权操作一个对象却修改另一个对象，或修改仅可见而非可编辑的对象。
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一、 漏洞 CVE-2026-56424 基础信息
漏洞信息
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Vulnerability Title
Broken access control in MISP core allows cross-organization unauthorized modification or deletion of analyst data, event reports, collections, templates, and decaying models
来源: CVE Program / CVE List V5
Vulnerability Description
MISP core contained multiple broken access-control flaws where authorization checks were performed against the wrong entity, or where ownership/editability checks were missing on write paths. In affected subsystems, a lower-privileged authenticated user with the relevant feature permission could cause the application to authorize one object but mutate another, or could modify objects that were merely visible rather than editable by the user’s organization.
The affected paths included:
* Event Reports tag removal: the route-authorized report could differ from the report ID used for tag detachment, enabling cross-organization tag removal from another event report
* Collection Elements bulk deletion: bulk deletion authorized against a collection whose ID matched the collection-element row ID, rather than the element’s actual parent collection, enabling deletion of elements from collections the user did not own.
* Analyst Data capture/update: nested analyst data updates could overwrite an existing record without applying the normal canEditAnalystData ownership check, enabling cross-organization overwrite of analyst data records.
* Template Elements editing: editing authorized against a template whose ID matched the template-element ID, rather than the element’s actual parent template, enabling unauthorized edits to another organization’s template elements.
* Decaying Model editing and mappings: write paths loaded models using view-scope access but did not verify edit ownership, enabling users to edit or remap visible models owned by another organization.
Successful exploitation could allow an authenticated user with subsystem-specific permissions to perform unauthorized cross-organization modifications or deletions of MISP data, resulting in integrity loss, unauthorized tampering with shared intelligence, and disruption of analyst workflows.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:L/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
来源: CVE Program / CVE List V5
Vulnerability Title
MISP 授权问题漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
MISP是MISP组织开源的一套开源的软件解决方案。该产品用于收集、存储、分发、共享网络安全指标,并具有威胁网络安全事件分析和恶意软件分析等功能。 MISP 2.5.41及之前版本存在授权问题漏洞，该漏洞源于多个权限控制缺陷，即对错误实体进行授权检查或写路径上缺少所有权/可编辑性检查，可能导致具有相应功能权限的低权限认证用户被授权操作一个对象却修改另一个对象，或修改仅可见而非可编辑的对象。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2026-56424 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-56424 补丁与修复 (5)
同批安全公告 · misp · 2026-06-22 · 共 6 条
| CVE-2026-56447 | MISP 软件供应链问题漏洞 | |
| CVE-2026-56446 | MISP 代码注入漏洞 | |
| CVE-2026-56425 | MISP 会话机制问题漏洞 | |
| CVE-2026-56423 | MISP 授权问题漏洞 | |
| CVE-2026-56422 | MISP 授权问题漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-56424
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