Weakness (CWE)
CWE-93: Improper Neutralization of CRLF Sequences
The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.
How to prevent it (2 mitigations)
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Implementation
Avoid using CRLF as a special sequence.
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Implementation
Appropriately filter or quote CRLF sequences in user-controlled input.
Source: MITRE CWE-93
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High 7.1CVE-2026-113386 Public exploit
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 are affected by IMAP command injection. A remote authenticated a…
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High 8.9CVE-2026-48019 Public exploit
CRLF injection in Laravel's default email rule enables SMTP smuggling and spoofed-mail relay
Laravel is a web application framework. Prior to versions 12.60.0 and 13.10.0, a CRLF injection vulnerability in Laravel's email validation, in combination with how Symfony Mailer and Symfony Mime handle certain character sequences, may allow an unauthenticat…
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Medium 6.3CVE-2026-45067 Public exploit
Symfony: Email Header / SMTP Command Injection via CRLF in Symfony\Component\Mime\Address
### Description `Symfony\Component\Mime\Address` is the value-object every Symfony Mailer address (to/cc/bcc/from/reply-to) flows through; its constructor is documented as validating the address and throwing on invalid input, so developers treat it as a secur…
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High 8.6CVE-2026-39983 Public exploit
FTP Command Injection via CRLF in basic-ftp
basic-ftp is an FTP client for Node.js. Prior to 5.2.1, basic-ftp allows FTP command injection via CRLF sequences (\r\n) in file path parameters passed to high-level path APIs such as cd(), remove(), rename(), uploadFrom(), downloadTo(), list(), and removeDir…
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High 8.8CVE-2026-35517 Public exploit
Pi-hole FTL affected by Remote Code Execution (RCE) via dns.upstreams Newline Injection
FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, the Pi-hole FTL engine contains a Remote Code Execution (RCE) vulnerability in the upstream DNS servers configuration parameter …
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High 8.5CVE-2026-34975 Public exploit
Plunk has a CRLF Email Header Injection in raw MIME message construction allows authenticated API user to inject arbitrary email headers
Plunk is an open-source email platform built on top of AWS SES. Prior to 0.8.0, a CRLF header injection vulnerability was discovered in SESService.ts, where user-supplied values for from.name, subject, custom header keys/values, and attachment filenames were …
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Medium 5.3CVE-2026-23829 Public exploit
Mailpit has SMTP Header Injection via Regex Bypass
Mailpit is an email testing tool and API for developers. Prior to version 1.28.3, 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 inject ar…
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High 7.5CVE-2026-22777 Public exploit
ComfyUI-Manager is Vulnerable to CRLF Injection in Configuration Handler
ComfyUI-Manager is an extension designed to enhance the usability of ComfyUI. Prior to versions 3.39.2 and 4.0.5, an attacker can inject special characters into HTTP query parameters to add arbitrary configuration values to the config.ini file. This can lead …
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High 7.5
Vulnerability in the Oracle Configurator product of Oracle E-Business Suite (component: Runtime UI). Supported versions…
KEV Oct 20, 2025 -
Critical 9.8CVE-2024-40324 Public exploit
A CRLF injection vulnerability in E-Staff v5.1 allows attackers to insert Carriage Return (CR) and Line Feed (LF) chara…
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High 8.8
New line injection during configuration edition
Cachet is an open source status page system. Prior to version 2.5.1, authenticated users, regardless of their privileges (User or Admin), can exploit a new line injection in the configuration edition feature (e.g. mail settings) and gain arbitrary code execut…
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Medium —CVE-2018-12537 Public exploit
Moderate severity vulnerability that affects io.vertx:vertx-core
In Eclipse Vert.x version 3.0 to 3.5.1, the HttpServer response headers and HttpClient request headers do not filter carriage return and line feed characters from the header value. This allow unfiltered values to inject a new header in the client request or s…
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Medium 6.4
Multiple CRLF injection vulnerabilities in session.c in sshd in OpenSSH before 7.2p2 allow remote authenticated users t…
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Critical 9.8CVE-2015-5285 Public exploit
Kallithea CRLF injection vulnerability
CRLF injection vulnerability in Kallithea before 0.3 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the came_from parameter to _admin/login.