GCVE-1-2026-0027 (CVE-2026-44363)

Vulnerability from gna-1 – Published: 2026-04-29 12:05 – Updated: 2026-05-06 16:03
VLAI
Title
Unsafe remote resource fetching in expansion misp-modules
Summary
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.
Severity
5.8 (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
CWE
  • CWE-610 - Externally Controlled Reference to a Resource in Another Sphere
Assigner
GNA-1 This instance
References
Impacted products
Vendor Product Version CPE status
misp misp-modules Affected: 0 , ≤ 3.0.7 (semver)
guessed Create a notification for this product.
Credits
Bilal Teke David Cruciani
To clipboard 

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