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CVE-2026-44363— Unsafe remote resource fetching in expansion misp-modules

Quick assessment

Affected
MISP misp-modules
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 modules是MISP Project开源的一个可扩展的威胁情报平台模块，支持导入、导出、扩展及自动化工作流。 MISP modules 3.0.7之前版本存在信任管理问题漏洞，该漏洞源于html_to_markdown模块接受任意HTTP(S) URL且验证不足，可能导致服务器端请求伪造；同时qrcode模块禁用TLS证书验证，可能导致中间人攻击。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.13% · P2

Affected Version Matrix 1

VendorProduct Version RangeStatus
MISP misp-modules < 3.0.7 affected
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I. Basic Information for CVE-2026-44363

Vulnerability Information
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Vulnerability Title
Unsafe remote resource fetching in expansion misp-modules
Source: CVE Program / CVE List V5
Vulnerability Description
MISP modules are autonomous modules that can be used to extend MISP for new services. Prior to 3.0.7, an unsafe remote resource fetching vulnerability existed in MISP Modules expansion modules. The html_to_markdown module accepted arbitrary HTTP(S) URLs without sufficient validation, which could allow Server-Side Request Forgery against loopback, private, or link-local network resources. Additionally, the qrcode module disabled TLS certificate verification when retrieving remote images, exposing requests to potential man-in-the-middle interception or response tampering. The issue was fixed by validating URL schemes, blocking local and private address ranges, resolving hostnames before fetching, enforcing request timeouts, and re-enabling TLS certificate verification. This vulnerability is fixed in 3.0.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
MISP modules 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MISP modules是MISP Project开源的一个可扩展的威胁情报平台模块，支持导入、导出、扩展及自动化工作流。 MISP modules 3.0.7之前版本存在信任管理问题漏洞，该漏洞源于html_to_markdown模块接受任意HTTP(S) URL且验证不足，可能导致服务器端请求伪造；同时qrcode模块禁用TLS证书验证，可能导致中间人攻击。
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-modules < 3.0.7 -

II. Public POCs for CVE-2026-44363

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III. Intelligence Information for CVE-2026-44363

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Vendor Advisories for CVE-2026-44363 (1)

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

CVE-2026-44379 MISP: Improper UUID validation in MISP Collections
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-modules
Same vendor: MISP
Same weakness: CWE-295

V. Comments for CVE-2026-44363

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