CVE-2026-120331Server-Side Request Forgery in extension "Mail" (mail)

Description

Content of external URL mails, their stylesheets and images to embed is fetched by the server without validating the target host. Backend users with access to the mail module can make the server send requests to hosts in the internal network.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://typo3.org/security/advisory/typo3-ext-sa-2026-037 vendor-advisory