CVE-2026-115785

Beschreibung

An SMTP command injection vulnerability in the data-source testing functionality of Zimbra Collaboration Suite (ZCS) allows an ordinary authenticated user with account options enabled to inject CR/LF into the emailAddress inserted into an SMTP envelope command by a JSON SOAP request. After a successful preliminary POP3 or IMAP login, Zimbra sends the injected commands to the selected SMTP service. If that service accepts the pipelined transaction, the attacker can submit mail with attacker-selected recipients, headers and body content without victim interaction. The vulnerable command-construction path is present in ZCS 10.1.16 and 10.1.20.

Betroffene Produkte

• cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*

Referenzen

• https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
• https://www.rapid7.com/blog/post/ve-breaking-zimbra-identity-boundaries-part-1/