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CVE-2026-44363 — Vulnerability in misp-modules — CVE Details

MEDIUM

misp-modules has nsafe remote resource fetching in expansion

Published May 6, 2026Updated July 13, 2026Source: osv

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. As reported by Bilal Teke.

Advisory Timeline

  • First published May 6, 2026 (159 days ago).
  • Last revised July 13, 2026 — 68 days after initial publication.

Affected Packages (1)

Affects 1 ecosystem: pypi (1).

PackageEcosystemAffectedFixed In
misp-modules
pypi
2.4.196, 2.4.197, 2.4.198, 2.4.199 (+9 more)Range-based data available

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-295
    Improper Certificate ValidationMITRE
  • CWE-918
    Server-Side Request Forgery (SSRF)MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.2 score means for each attack dimension.

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
—
Confidentiality
—
Integrity
—
Availability
—

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

References

Frequently Asked Questions

What is CVE-2026-44363?
misp-modules has nsafe remote resource fetching in expansion This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 9.2/10).
How do I check if my project is affected by CVE-2026-44363?
CVE-2026-44363 affects misp-modules. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-44363 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.2

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-fhq3-2gf3-8f3j
PYSEC-2026-2650

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