CVE-2026-44363

MEDIUM EPSS 1.1%
Published May 13, 20261mo ago · Modified Jun 17, 20262w ago
5.8 CVSS 4.0
Medium
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Published May 13, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.8
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Adjacent
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
1.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-295
CWE-918 Server-Side Request Forgery (SSRF) Validation

References 2

  • github.com https://github.com/MISP/misp-modules/commit/01a522f2772fc31eeed379ccf23750c8a3d401db
  • github.com https://github.com/MISP/misp-modules/security/advisories/GHSA-fhq3-2gf3-8f3j

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.