CRLF Injection

Overview Affected versions of this package are vulnerable to CRLF Injection via the getFilename process. An attacker can inject arbitrary headers into MIME messages by supplying a crafted attachment filename containing carriage return and line feed characters, which are not properly sanitized...

CVE-2026-90776

A flaw was found in Nodemailer's addressparser component. A remote attacker can exploit this by crafting malicious email headers containing specially formatted comments. This can lead to excessive CPU consumption and block the Node.js event loop, resulting in a denial of service for the...

CVE-2026-86813

The MetForm WordPress plugin before 4.1.9 does not properly neutralize newline characters in user-submitted values that are placed into notification email headers, allowing unauthenticated attackers to inject additional email headers, such as Bcc, into the emails the site sends when a submitted...

CVE-2026-86813: Improper Neutralization of CRLF Sequences

The MetForm WordPress plugin before 4.1.9 does not properly neutralize newline characters in user-submitted values that are placed into notification email headers, allowing unauthenticated attackers to inject additional email headers, such as Bcc, into the emails the site sends when a submitted...

eml_parser has parser DoS via deeply nested parentheses in e-mail headers

Summaryemlparser uses the email.utils.getaddresses function from the CPython standard library to parse e-mail headers that contain e-mail addresses such as To, Cc, Bcc, From, Reply-To, Sender, .... When the input header contains a deeply nested CFWS comment / folding white space construct, the...

GHSA-2QH5-382H-3JPC CakePHP: SmtpTransport vulnerable to CRLF header injection

Impact Custom mail headers added with Message::setHeaders or addHeaders do not have CRLF replaced allowing header injection if user controlled data is added to message headers without stripping CRLF bytes. Patches 5.3.7, 5.2.14, 5.1.9, 4.6.5, 4.5.12 contain fixes for this issue. Workarounds You c...

CVE-2026-19862: Improper Neutralization of CRLF Sequences

The JetFormBuilder WordPress plugin before 3.6.5.2 does not validate or strip line breaks from address values it sources from submitted form fields before adding them to the headers of the e-mails it sends, allowing unauthenticated users to inject arbitrary e-mail headers, add hidden recipients a...

CVE-2026-82661

Nodemailer before 8.0.9 fails to sanitize carriage return and line feed characters in list comment fields, allowing attackers to inject arbitrary message headers. An attacker with control over list..comment parameters can inject CRLF sequences to create additional headers in generated RFC822...

SUSE CVE-2026-27852

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit...

ALPINE-CVE-2026-27852

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit...

AZL-98289 CVE-2026-27852 affecting package dovecot 2.3.20-1

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit...

EUVD-2026-67657

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit...

CVE-2026-27852

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit...

CVE-2026-27852

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit...

PT-2026-83050

Name of the Vulnerable Software and Affected Versions dovecot versions prior to 2.4.5-1.1 Description An attacker can send a crafted email with headers containing an excessive number of email addresses or MIME parameters. When the message is parsed via IMAP, it leads to excessive memory...

eml_parser has parser DoS via deeply nested parentheses in e-mail headers

Summary emlparser uses the email.utils.getaddresses function from the CPython standard library to parse e-mail headers that contain e-mail addresses such as To, Cc, Bcc, From, Reply-To, Sender, .... When the input header contains a deeply nested CFWS comment / folding white space construct, the...

GHSA-M66C-FW79-6359 eml_parser has parser DoS via deeply nested parentheses in e-mail headers

Summary emlparser uses the email.utils.getaddresses function from the CPython standard library to parse e-mail headers that contain e-mail addresses such as To, Cc, Bcc, From, Reply-To, Sender, .... When the input header contains a deeply nested CFWS comment / folding white space construct, the...

Excessively Deep Nesting

Overview eml-parser is a Python EML parser library Affected versions of this package are vulnerable to Excessively Deep Nesting in the parsing process of e-mail headers containing deeply nested parentheses. An attacker can cause the application to exhaust the call stack and terminate unexpectedly...

CVE-2026-55619 eml_parser: Parser DoS via deeply nested parentheses in e-mail headers

emlparser serves as a python module for parsing eml files and returning various information found in the e-mail as well as computed information. Prior to 3.0.2, emlparser.parser.HeaderParser.headerfetchparse in emlparser/parser.py uses email.utils.getaddresses to parse address-bearing e-mail...

CVE-2026-55619 eml_parser: Parser DoS via deeply nested parentheses in e-mail headers

emlparser serves as a python module for parsing eml files and returning various information found in the e-mail as well as computed information. Prior to 3.0.2, emlparser.parser.HeaderParser.headerfetchparse in emlparser/parser.py uses email.utils.getaddresses to parse address-bearing e-mail...