CVE-2026-115785

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.
Configurations

No configuration.

History

23 Oct 2026, 14:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-10-23 14:17

Updated : 2026-10-29 11:17


NVD link : CVE-2026-115785

Mitre link : CVE-2026-115785

CVE.ORG link : CVE-2026-115785


JSON object : View

Products Affected

No product.

CWE
CWE-93

Improper Neutralization of CRLF Sequences ('CRLF Injection')