MISP misp-modules up to 3.0.12 Sourcecache Expansion server-side request forgery

Summaryinfo

A vulnerability, which was classified as critical, was found in MISP misp-modules up to 3.0.12. Affected is an unknown function of the component Sourcecache Expansion Module. Such manipulation leads to server-side request forgery. This vulnerability is uniquely identified as CVE-2026-125871. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in MISP misp-modules up to 3.0.12 and classified as critical. Affected by this issue is some unknown functionality of the component Sourcecache Expansion Module. The manipulation with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-125871 since 11/10/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 3.0.13 eliminates this vulnerability.

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Productinfo

Vendor

• MISP

Name

• misp-modules

Version

• 3.0.0
• 3.0.1
• 3.0.2
• 3.0.3
• 3.0.4
• 3.0.5
• 3.0.6
• 3.0.7
• 3.0.8
• 3.0.9
• 3.0.10
• 3.0.11
• 3.0.12

License

• open-source

Website

• Product: https://github.com/MISP/misp-modules/

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