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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-56446— Authenticated Remote Code Execution via Arbitrary NDJSON Error Log Path in MISP

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及之前版本存在代码注入漏洞，该漏洞源于站点管理员可配置JsonLogTool使用的NDJSON错误日志的任意文件系统路径，由于日志条目可能包含攻击者控制的内容，经过身份验证且具有站点管理员权限的攻击者可将日志输出导向Web可访问目录中的PHP文件，并通过记录的数据注入PHP代码，访问生成的文件可能导致以Web服务器进程权限远程执行代码。

AI Predicted 9.8 Difficulty: Easy EPSS 0.69% · P51

Affected Version Matrix 1

VendorProduct Version RangeStatus
misp misp ≤ 2.5.41 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-56446

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Authenticated Remote Code Execution via Arbitrary NDJSON Error Log Path in MISP
Source: CVE Program / CVE List V5
Vulnerability Description
MISP allowed a site administrator to configure an arbitrary filesystem path for the NDJSON error log used by JsonLogTool. Because log entries can include attacker-controlled content, an authenticated attacker with site administrator privileges could direct log output to a PHP file in a web-accessible directory and inject PHP code through logged data. Accessing the resulting file could lead to remote code execution with the privileges of the web server process. The fix restricts log destinations to existing directories beneath APP/tmp/logs or /var/log, requires absolute paths, rejects stream wrappers and traversal-related input, and limits filenames to .log or .ndjson extensions while disallowing executable extension segments.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
MISP 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
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及之前版本存在代码注入漏洞，该漏洞源于站点管理员可配置JsonLogTool使用的NDJSON错误日志的任意文件系统路径，由于日志条目可能包含攻击者控制的内容，经过身份验证且具有站点管理员权限的攻击者可将日志输出导向Web可访问目录中的PHP文件，并通过记录的数据注入PHP代码，访问生成的文件可能导致以Web服务器进程权限远程执行代码。
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 ~ 2.5.41 -

II. Public POCs for CVE-2026-56446

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-56446

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-56446 (1)

Same Patch Batch · misp · 2026-06-22 · 6 CVEs total

CVE-2026-56447 MISP remote code execution via arbitrary rdkafka configuration path
CVE-2026-56424 Broken access control in MISP core allows cross-organization unauthorized modification or
CVE-2026-56425 MISP AAD authentication plugin - Improper OAuth State Handling, Missing Session Rotation,
CVE-2026-56423 MISP Core: Broken access control allows instance-wide unauthorized deletion of event repor
CVE-2026-56422 MISP Core: Mass Assignment and Object Re-ownership via Unvalidated Request Fields

IV. Related Vulnerabilities

Same product: misp
Same vendor: misp
Same weakness: CWE-94

V. Comments for CVE-2026-56446

No comments yet

Leave a comment