CVE-2026-8080-DKIM-Signature-Verification-Bypass-Header-Canonicalization-Flaw-

CVE-2026-8080 – DKIM Signature Verification Bypass Header Canonicalization Flaw Program Code Python email parsing simulation dkimverifiersim.py - Flawed DKIM verifier import re, hashlib Simulated email with DKIM signature rawemail = b"""From: [email protected] To: [email protected]...

Spoofy

Spoofy WHAT Spoofy is a program that checks if a list of domains can be spoofed based on SPF and DMARC records. You may be asking, "Why do we need another tool that can check if a domain can be spoofed?" Well, Spoofy is different and here is why: 1. Custom, manually tested spoof logic No guessing...

EUVD-2026-101754

Nodemailer from 3.0.0 before 10.0.10 contains a denial of service vulnerability in MessageParser.parseHeaders that allows users to exhaust CPU through quadratic header unfolding. Attackers can supply large recipient lists or long headers that fold into tens of thousands of continuation lines,...

CVE-2026-110871

Nodemailer from 3.0.0 before 10.0.10 contains a denial of service vulnerability in MessageParser.parseHeaders that allows users to exhaust CPU through quadratic header unfolding. Attackers can supply large recipient lists or long headers that fold into tens of thousands of continuation lines,...

CVE-2026-110871

Nodemailer from 3.0.0 before 10.0.10 contains a denial of service vulnerability in MessageParser.parseHeaders that allows users to exhaust CPU through quadratic header unfolding. Attackers can supply large recipient lists or long headers that fold into tens of thousands of continuation lines,...

CVE-2026-110871

The Nodemailer library (versions 3.0.0 to before 10.0.10 ) is vulnerable to a Denial of Service attack via the MessageParser.parseHeaders function. The root cause is quadratic header unfolding , where attackers provide long headers or large recipient lists that expand into tens of thousands of co...

CVE-2026-110871 Nodemailer 3.0.0 before 10.0.10 Quadratic DKIM Header Unfolding Denial of Service

Nodemailer from 3.0.0 before 10.0.10 contains a denial of service vulnerability in MessageParser.parseHeaders that allows users to exhaust CPU through quadratic header unfolding. Attackers can supply large recipient lists or long headers that fold into tens of thousands of continuation lines,...

CVE-2026-110871

Nodemailer from 3.0.0 before 10.0.10 contains a denial of service vulnerability in MessageParser.parseHeaders that allows users to exhaust CPU through quadratic header unfolding. Attackers can supply large recipient lists or long headers that fold into tens of thousands of continuation lines,...

PT-2026-114185

Nodemailer from 3.0.0 before 10.0.10 contains a denial of service vulnerability in MessageParser.parseHeaders that allows users to exhaust CPU through quadratic header unfolding. Attackers can supply large recipient lists or long headers that fold into tens of thousands of continuation lines,...

Linux Distros Unpatched Vulnerability : CVE-2026-110871

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Nodemailer from 3.0.0 before 10.0.10 contains a denial of service vulnerability in MessageParser.parseHeaders that allows users to exhaust CPU through quadratic...

espoofer

espoofer espoofer es una herramienta de prueba de código abierto para eludir la autenticación SPF, DKIM y DMARC en sistemas de correo electrónico. Ayuda a administradores de servidores de correo y probadores de penetración a verificar si el servidor de correo y el cliente objetivo son vulnerables...

CVE-2026-107576

Inefficient algorithmic complexity in the inbound DKIM and ARC signature verification of Progressive Robot hMailServer 6.0.0 through 6.3.5 allows a remote unauthenticated attacker to make the mail services unavailable by sending a message. Building the canonical header and choosing the header...

EUVD-2026-94859

Inefficient algorithmic complexity in the inbound DKIM and ARC signature verification of Progressive Robot hMailServer 6.0.0 through 6.3.5 allows a remote unauthenticated attacker to make the mail services unavailable by sending a message. Building the canonical header and choosing the header...

CVE-2026-107576

Progressive Robot hMailServer versions 6.0.0 through 6.3.5 are vulnerable to a Denial of Service (DoS) attack due to inefficient algorithmic complexity in inbound DKIM and ARC signature verification. The root cause is that building the canonical header and selecting fields for the h= tag scales q...

CVE-2026-107576 Inefficient Algorithmic Complexity in hMailServer

Inefficient algorithmic complexity in the inbound DKIM and ARC signature verification of Progressive Robot hMailServer 6.0.0 through 6.3.5 allows a remote unauthenticated attacker to make the mail services unavailable by sending a message. Building the canonical header and choosing the header...

CVE-2026-107576 Inefficient Algorithmic Complexity in hMailServer

Inefficient algorithmic complexity in the inbound DKIM and ARC signature verification of Progressive Robot hMailServer 6.0.0 through 6.3.5 allows a remote unauthenticated attacker to make the mail services unavailable by sending a message. Building the canonical header and choosing the header...

Apple iCloud Mail Arbitrary Email Sender Spoofing

Apple iCloud Mail contained two SMTP submission-service parsing issues that allowed authenticated users to send email as arbitrary icloud.com addresses while passing SPF, DKIM, and DMARC checks...

Linux Distros Unpatched Vulnerability : CVE-2026-100888

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A weakness has been identified in Trusted Domain Project OpenDKIM up to 2.11.0. This affects the function dkimcanonselecthdrs of the file libopendkim/dkim-canon...

SUSE CVE-2026-100888

A weakness has been identified in Trusted Domain Project OpenDKIM up to 2.11.0. This affects the function dkimcanonselecthdrs of the file libopendkim/dkim-canon.c of the component DKIM Signature Header Selection. Executing a manipulation of the argument h can lead to out-of-bounds write. The atta...

EUVD-2026-88052

A weakness has been identified in Trusted Domain Project OpenDKIM up to 2.11.0. This affects the function dkimcanonselecthdrs of the file libopendkim/dkim-canon.c of the component DKIM Signature Header Selection. Executing a manipulation of the argument h can lead to out-of-bounds write. The atta...