Microsoft Exchange InterceptorSmtpAgent Improper Input Validation Security Feature Bypass Vulnerability

This vulnerability allows remote attackers to bypass a security feature on affected installations of Microsoft Exchange. Authentication is not required to exploit this vulnerability. The specific flaw exists within the InterceptorSmtpAgent class. The issue results from the improper parsing of SMT...

ROS-20260224-73-0003

A vulnerability in the ngxmailsmtp response header handler of NGINX Plus and NGINX Open Source web servers is related to a violation of the initial buffer boundary. Exploitation of the vulnerability could allow an attacker acting remotely to gain read access to the data...

GO-2026-4333 Mailpit has an SMTP Header Injection via Regex Bypass in github.com/axllent/mailpit

Mailpit has an SMTP Header Injection via Regex Bypass in github.com/axllent/mailpit...

PT-2026-6508

Mailpit has an SMTP Header Injection via Regex Bypass in github.com/axllent/mailpit...

GHSA-54WQ-72MP-CQ7C Mailpit has an SMTP Header Injection via Regex Bypass

Vulnerability Report: SMTP Header Injection via Regex Bypass Vulnerable Code: mailpit/internal/smtpd/smtpd.go Executive Summary Mailpit's SMTP server is vulnerable to Header Injection due to an insufficient Regular Expression used to validate RCPT TO and MAIL FROM addresses. An attacker can injec...

CRLF Injection

Overview Affected versions of this package are vulnerable to CRLF Injection via insufficient validation of FROM and TO parameters. An attacker can inject arbitrary SMTP headers or corrupt existing ones by including carriage return characters in email addresses. Remediation Upgrade...

CVE-2026-23829

CVE-2026-23829 — Mailpit SMTP header injection via regex bypass. Mailpit’s SMTP server (prior to v1.28.3) fails to properly filter control characters in RCPT TO/MAIL FROM addresses due to a regex with an incomplete character class, allowing CR/LF bypass and header injection. The flaw stems from G...

PT-2026-3406

Name of the Vulnerable Software and Affected Versions Mailpit versions prior to 1.28 Description Mailpit, an email testing tool and API for developers, has a header injection issue in its SMTP server. This is due to a flawed regular expression used to validate RCPT TO and MAIL FROM addresses,...

EUVD-2000-1226

Malware in sbrugna...

EUVD-2022-4710

Malicious code in bioql PyPI...

VMware vCenter SMTP Header Injection Vulnerability

VMware vCenter is a virtualization management software from VMware. An SMTP header injection vulnerability exists in VMware vCenter, which can be exploited by an attacker to manipulate notification emails for scheduled tasks...

CVE-2025-41250

VMware vCenter contains an SMTP header injection vulnerability. A malicious actor with non-administrative privileges on vCenter who has permission to create scheduled tasks may be able to manipulate the notification emails sent for scheduled tasks...

CVE-2025-41250 Header injection vulnerability

VMware vCenter contains an SMTP header injection vulnerability. A malicious actor with non-administrative privileges on vCenter who has permission to create scheduled tasks may be able to manipulate the notification emails sent for scheduled tasks...

CVE-2025-41250 Header injection vulnerability

VMware vCenter contains an SMTP header injection vulnerability. A malicious actor with non-administrative privileges on vCenter who has permission to create scheduled tasks may be able to manipulate the notification emails sent for scheduled tasks...

CVE-2025-41250: Improper Neutralization of Special Elements used in a Command

VMware vCenter contains an SMTP header injection vulnerability. A malicious actor with non-administrative privileges on vCenter who has permission to create scheduled tasks may be able to manipulate the notification emails sent for scheduled tasks...

CVE-2000-1244

Computer Associates InoculateIT Agent for Exchange Server does not recognize an e-mail virus attachment if the SMTP header is missing the "From" field, which allows remote attackers to bypass virus protection...

K7985: ClamAV clamav-milter vulnerability - CVE-2007-4560

Security Advisory Description Note : Versions that are not listed in this article have not been evaluated for vulnerability to this security advisory. For information about the F5 security policy regarding evaluating older and unsupported versions of F5 products, refer to K4602: Overview of the F...

SUSE CVE-2017-9801

When a call-site passes a subject for an email that contains line-breaks in Apache Commons Email 1.0 through 1.4, the caller can add arbitrary SMTP headers...

Hardcoded credentials

A user controlled parameter related to SMTP test functionality is not correctly validated making it possible to add the Carriage Return and Line Feed CRLF control characters and include arbitrary SMTP headers in the generated test email...

Introducing Periscope: Out-of-Band Vulnerability Detection Mechanism in Qualys WAS

Web applications and REST APIs can be susceptible to a certain class of vulnerabilities that can't be detected by a traditional HTTP request-response interaction. These vulnerabilities are challenging to find but provide a way for attackers to target otherwise inaccessible, internal systems. An...