EUVD-2026-101577

In Eclipse Vert.x versions 4.0.0, 4.5.34 or 5.0.0,5.0.12 or 5.1.0,5.1.9 or 5.2.0, 5.2.0, the vertx-mail-client does not sanitize CR \r or LF \n characters in user-supplied email header names and values before writing them into the SMTP DATA section. A CR/LF sequence embedded in a name or value...

CVE-2026-102471

In Eclipse Vert.x versions 4.0.0, 4.5.34 or 5.0.0,5.0.12 or 5.1.0,5.1.9 or 5.2.0, 5.2.0, the vertx-mail-client does not sanitize CR \r or LF \n characters in user-supplied email header names and values before writing them into the SMTP DATA section. A CR/LF sequence embedded in a name or value...

CVE-2026-102471 CRLF header injection in vertx-mail-client allows manipulation of outgoing SMTP messages

In Eclipse Vert.x versions 4.0.0, 4.5.34 or 5.0.0,5.0.12 or 5.1.0,5.1.9 or 5.2.0, 5.2.0, the vertx-mail-client does not sanitize CR \r or LF \n characters in user-supplied email header names and values before writing them into the SMTP DATA section. A CR/LF sequence embedded in a name or value...

CVE-2026-102471

The io.vertx:vertx-mail-client component in Eclipse Vert.x versions [4.0.0, 4.5.34] , [5.0.0, 5.0.12] , [5.1.0, 5.1.9] , and [5.2.0, 5.2.0] is vulnerable to CRLF header injection . The root cause is the failure to sanitize CR () and LF () characters in user-supplied email header names, values, an...