CVE-2026-44363
mediumpriority · track · 0EPSS 0.001 · 1 %ileDEEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.5–5.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1547MISP und MISP Modules: Mehrere SchwachstellenDeutsch2026-05-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in MISP und MISP Modules ausnutzen, um Informationen offenzulegen, um Admin-Rechte zu erlangen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder vertrauliche Informationen offenzulegen.
- GHSA-fhq3-2gf3-8f3jmisp-modules has nsafe remote resource fetching in expansion2026-05-06ghsa · osvUS
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.
- PYSEC-2026-2650misp-modules has nsafe remote resource fetching in expansion2026-07-13vendor · osvUS
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.
also known as (6)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://github.com/MISP/MISP/releasesPatchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-44363cnnvd
- https://github.com/MISP/misp-modules/commit/01a522f2772fc31eeed379ccf23750c8a3d401dbenisa_euvd
- https://github.com/MISP/misp-modules/security/advisories/GHSA-fhq3-2gf3-8f3jenisa_euvd
- https://github.com/MISP/misp-modules/commit/01a522f2772fc31eeed379ccf23750c8a3d401dbnvd
- https://github.com/MISP/misp-modules/security/advisories/GHSA-fhq3-2gf3-8f3jnvd
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