Unsafe remote resource fetching in expansion misp-modules_CVE-2026-44363

5.8 / 10

MEDIUM

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

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.

Basic Information

ID CVE-2026-44363

Source GitHub_M

Published May 13, 2026 at 19:16

Affected Product

Vendor MISP

Product misp-modules

Version < 3.0.7

Affected Versions MISP misp-modules < 3.0.7

CWE Classification

CWE-295 CWE-918

References

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    "published": "2026-05-13T19:16:59.579Z",
    "modified": "2026-05-13T19:16:59.579Z",
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