CVE-2023-51764

CVE-2023-51764 Postfix SMTP Smuggling - POC de script Expect envía un correo electrónico legítimo, pero dentro del correo hay muchos otros correos diferentes remitentes, destinatarios, asunto, etc.. El correo inicial se verifica con SPF/DKIM/DMARC, ¡los demás que están dentro no! uso:...

CVE-2026-48019

Laravel (PHP web framework) prior to versions 12.60.0 and 13.10.0 is affected by a CRLF injection vulnerability in its default email validation (validateEmail() and Address.php), in combination with how Symfony Mailer and Symfony Mime handle certain character sequences. An unauthenticated attacke...

CVE-2023-51764

PoC for CVE-2023-51764 SMTP SMUGGLING Postfix CVE-2023-5176525.py 描述 此脚本允许使用邮件服务器的25端口发送消息。 使用 在运行之前，需要修改以下变量： smtpserver - 邮件服务器地址 fromaddress - 第一封邮件的发件人 toaddress - 第一封邮件的收件人 username - 用于通过认证的登录名 password - 用于通过认证的密码 body - 消息内容 消息正文中有两个变量 mail FROM - 虚假发件人地址 rcpt TO - 实际收件人地址...

CVE-2023-51764-POC

基于 https://github.com/duy-31/CVE-2023-51764 以及 https://events.ccc.de/congress/2023/hub/en/event/smtpsmugglingspoofinge-mailsworldwide/?trk=publicpostcomment-text 这只是一个移植到Python 3.x的PoC。...

CVE-2026-33604

A flaw was found in Dovecot. A remote attacker can exploit this by crafting a message with a specific line ending. If Dovecot relays this message, it can bypass security protections, allowing the attacker to inject spoofed email into a vulnerable downstream mail server. This vulnerability is...

Linux Distros Unpatched Vulnerability : CVE-2026-33604

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An attacker that can get Dovecot to relay a message, for example through Sieve redirect or submission relay, can use a crafted line ending in the message body t...

ALPINE-CVE-2026-33604

An attacker that can get Dovecot to relay a message, for example through Sieve redirect or submission relay, can use a crafted line ending in the message body to bypass the outbound protection that prevents message content from being interpreted as SMTP commands. A downstream mail server that...

AZL-98280 CVE-2026-33604 affecting package dovecot 2.3.20-1

An attacker that can get Dovecot to relay a message, for example through Sieve redirect or submission relay, can use a crafted line ending in the message body to bypass the outbound protection that prevents message content from being interpreted as SMTP commands. A downstream mail server that...

CVE-2026-33604

An attacker that can get Dovecot to relay a message, for example through Sieve redirect or submission relay, can use a crafted line ending in the message body to bypass the outbound protection that prevents message content from being interpreted as SMTP commands. A downstream mail server that...

EUVD-2026-67659

An attacker that can get Dovecot to relay a message, for example through Sieve redirect or submission relay, can use a crafted line ending in the message body to bypass the outbound protection that prevents message content from being interpreted as SMTP commands. A downstream mail server that...

CVE-2026-33604

An attacker that can get Dovecot to relay a message, for example through Sieve redirect or submission relay, can use a crafted line ending in the message body to bypass the outbound protection that prevents message content from being interpreted as SMTP commands. A downstream mail server that...

CVE-2026-33604

An attacker that can get Dovecot to relay a message, for example through Sieve redirect or submission relay, can use a crafted line ending in the message body to bypass the outbound protection that prevents message content from being interpreted as SMTP commands. A downstream mail server that...

CVE-2026-33604

Dovecot (Open-Xchange) contains an SMTP smuggling vulnerability in its outbound relay protection. An attacker who can get Dovecot to relay a message—e.g., via Sieve redirect or submission relay —can craft a line ending in the message body to bypass the protection that normally prevents message co...

PT-2026-83052

This update for dovecot24 fixes the following issues: Update to 2.4.5. - CVE-2026-33263: submission-login: panic when mail max userip connections is reached bsc1276794. - CVE-2026-27852: DoS by sending mail with bad header bsc1276799. - CVE-2026-33604: SMTP smuggling via missing dot-stuffing afte...

CVE-2026-33604

An attacker that can get Dovecot to relay a message, for example through Sieve redirect or submission relay, can use a crafted line ending in the message body to bypass the outbound protection that prevents message content from being interpreted as SMTP commands. A downstream mail server that...

UBUNTU-CVE-2026-33604

An attacker that can get Dovecot to relay a message, for example through Sieve redirect or submission relay, can use a crafted line ending in the message body to bypass the outbound protection that prevents message content from being interpreted as SMTP commands. A downstream mail server that...

Astra Linux – Vulnerability in sendmail

Sendmail in version 8.17.2 allows for SMTP smuggling in certain configurations. Remote attackers can utilize a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, thereby bypassing an SPF protection mechanism. This issue arises because Sendmail supports...

Medium: sendmail

Issue Overview: sendmail through at least 8.14.7 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because sendmail...

Amazon Linux 2023 : sendmail, sendmail-cf, sendmail-milter (ALAS2023-2026-1818)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1818 advisory. sendmail through at least 8.14.7 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address,...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS : Exim vulnerabilities (USN-8382-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8382-1 advisory. Timo Longin discovered that Exim incorrectly handled certain SMTP messages in PIPELINING/CHUNKING configurations. A...