CVE-2026-102471

A flaw was found in vertx-mail-client. This vulnerability allows an unauthenticated remote attacker to inject arbitrary email headers and manipulate outgoing messages by submitting unsanitized Carriage Return CR and Line Feed LF characters into email fields or attachment metadata. Consequently, a...

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...

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 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

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 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...

br.com.seedgrid:seedgrid-ai-pricing (>=2026.10.08, <=2026.10.22), br.com.seedgrid:seedgrid-apikeys (>=2026.07.08, <=2026.10.22) +56 more potentially affected by CVE-2026-102471 via io.vertx:vertx-mail-client (>=4.0.0, <=4.5.34)

io.vertx:vertx-mail-client MAVEN version =4.0.0, =2026.10.08, =2026.07.08, =2026.07.08, =2026.07.08, =2026.07.08, =2026.09.10, =2026.09.10, =2026.10.08, =2026.09.10, =2026.09.10, =2026.10.08, =2026.07.09, =2026.07.09, =2026.10.08, =2026.10.22 and more Source cves: CVE-2026-102471 Source advisory:...

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...

PT-2026-113938

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 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 passed...

CVE-2026-102471: Improper Neutralization of CRLF Sequences

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...