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CVE-2026-44379— MISP: Improper UUID validation in MISP Collections

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 2.5.37之前版本存在输入验证错误漏洞，该漏洞源于MISP Collections未对uuid字段强制执行RFC 4122 UUID验证，可能导致用户提交格式错误的UUID值。

AI Predicted 5.3 Difficulty: Easy EPSS 0.29% · P20

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
MISP MISP < 2.5.37 affected
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I. Basic Information for CVE-2026-44379

Vulnerability Information
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Vulnerability Title
MISP: Improper UUID validation in MISP Collections
Source: CVE Program / CVE List V5
Vulnerability Description
MISP is an open source threat intelligence and sharing platform. Prior to 2.5.37, MISP Collections did not enforce RFC 4122 UUID validation on the uuid field. As a result, a user able to create or modify Collection records could submit malformed UUID values, potentially causing integrity issues or unexpected behaviour in code paths that assume Collection UUIDs are valid identifiers. This vulnerability is fixed in 2.5.37.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
MISP 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MISP是MISP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 2.5.37之前版本存在输入验证错误漏洞，该漏洞源于MISP Collections未对uuid字段强制执行RFC 4122 UUID验证，可能导致用户提交格式错误的UUID值。
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 < 2.5.37 -

II. Public POCs for CVE-2026-44379

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III. Intelligence Information for CVE-2026-44379

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Patches & Fixes for CVE-2026-44379 (1)

Vendor Advisories for CVE-2026-44379 (1)

Same Patch Batch · MISP · 2026-05-13 · 5 CVEs total

CVE-2026-44363 Unsafe remote resource fetching in expansion misp-modules
CVE-2026-44381 MISP: SQL injection via unvalidated ordering parameters in event and shadow attribute list
CVE-2026-44364 misp-modules website - Missing CSRF protection in the website home blueprint
CVE-2026-44380 MISP: Improper access control in auth key reset allows privilege escalation to site admin

IV. Related Vulnerabilities

Same product: MISP
Same vendor: MISP
Same weakness: CWE-20

V. Comments for CVE-2026-44379

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