CVE-2026-34719

MEDIUM

4.3

Descripcion

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the webhook model was missing a proper validation for loop back addresses, or link-local addresses — only the URL scheme (HTTP/HTTPS) as well as the hostname was checked. This could end up in retrieving confidential metadata of cloud/hosting providers. The existing check is now extended and is applied when configuring webhooks as well as triggering webhook jobs. This vulnerability is fixed in 7.0.1 and 6.5.4.

Detalles CVE

Puntuacion CVSS v3.14.3

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado4/8/2026

Ultima modificacion4/17/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

zammad:zammad

Debilidades (CWE)

CWE-918

Referencias

https://github.com/zammad/zammad/security/advisories/GHSA-2vgc-vfh2-rw75(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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