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CVE-2026-125871— MISP sourcecache module SSRF allows fetching arbitrary internal URLs via attribute enrichment

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（misp-modules）中的 sourcecache 扩展模块存在服务端请求伪造（SSRF）漏洞。当具有创建或修改类型为"link"或"url"属性权限的用户提交属性值时，该模块会将 URL 直接传递给其内部归档函数，且未对目标地址进行任何验证。攻击者因此可构造指向回环地址（例如 127.0.0.1）、私有网络地址段、链路本地地址或云元数据端点（例如 169.254.169.254）的 URL。MISP 服务器将向该目标发起 HTTP 请求，并将响应体存储到事件（event）中，从而通过

CVSS 6.3 · Medium
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I. Basic Information for CVE-2026-125871

Vulnerability Information
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Vulnerability Title
MISP sourcecache module SSRF allows fetching arbitrary internal URLs via attribute enrichment
Source: CVE Program / CVE List V5
Vulnerability Description
The sourcecache expansion module in MISP Modules (misp-modules) contains a Server-Side Request Forgery (SSRF) vulnerability. When a user with permission to create or modify attributes of type 'link' or 'url' submits an attribute value, the module passes the URL directly to its internal archiving function without any validation of the target address. An attacker can therefore craft a URL pointing to loopback addresses (e.g., 127.0.0.1), private network ranges, link-local addresses, or cloud metadata endpoints (e.g., 169.254.169.254). The MISP server will issue an HTTP request to that target and store the response body in the event, effectively exfiltrating data from internal services to the attacker through the MISP interface. Non-HTTP schemes such as file:// are also accepted, potentially allowing local file disclosure. The vulnerability requires an authenticated MISP user with the ability to create or edit attributes of the affected types. The security impact is information disclosure from internal services reachable by the MISP server, including sensitive data such as cloud credentials, internal application data, or local files.
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:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
MISP misp-modules 0 ~ 3.0.13 cpe:2.3:a:misp:misp-modules:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-125871

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III. Intelligence Information for CVE-2026-125871

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Other References for CVE-2026-125871 (1)

IV. Related Vulnerabilities

Same product: misp-modules
Same vendor: MISP
Same weakness: CWE-918