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
78 results · Clear filters · Feed
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High 7.8
PHPUnit: Argument injection via newline in PHP INI values forwarded to child processes
# Impact PHPUnit forwards PHP INI settings to child processes (used for isolated/PHPT test execution) as `-d name=value` command-line arguments without neutralizing INI metacharacters. Because PHP's INI parser interprets `"` as a string delimiter, `;` as the …
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High 7.5
Openfind｜MailGates/MailAudit - CRLF Injection
MailGates/MailAudit developed by Openfind has a CRLF Injection vulnerability, allowing unauthenticated remote attackers to exploit this vulnerability to read system files.
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High 8.2
basic-ftp: Incomplete CRLF Injection Protection Allows Arbitrary FTP Command Execution via Credentials and MKD Commands
## Summary basic-ftp's CRLF injection protection (added in commit 2ecc8e2 for GHSA-chqc-8p9q-pq6q) is incomplete. Two code paths bypass the `protectWhitespace()` control character check: (1) the `login()` method directly concatenates user-supplied credentials…
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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 8.1
CI4MS has an .env CRLF Injection via Unvalidated `host` Parameter in Install Controller
CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to 0.31.4.0, the Install::index() controller reads the host POST parameter without any validation and passes it…
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High 8.8
Pi-hole FTL affected by Remote Code Execution (RCE) via dhcp.hosts 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 DHCP hosts configuration parameter (dhcp.host…
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High 8.8
Pi-hole FTL affected by Remote Code Execution (RCE) via dhcp.leaseTime 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 DHCP lease time configuration parameter (dhcp…
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High 8.8
Pi-hole FTL affected by Remote Code Execution (RCE) via dns.hostRecord 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 DNS host record configuration parameter (dns.…
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High 8.8
Pi-hole FTL affected by Remote Code Execution (RCE) via dns.cnameRecords 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 DNS CNAME records configuration parameter (dn…
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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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High 7.5
h3 has a Server-Sent Events Injection via Unsanitized Newlines in Event Stream Fields
H3 is a minimal H(TTP) framework. In versions prior to 1.15.6 and between 2.0.0 through 2.0.1-rc.14, createEventStream is vulnerable to Server-Sent Events (SSE) injection due to missing newline sanitization in formatEventStreamMessage() and formatEventStreamC…
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High 8.6
ShopLentor <= 3.3.2 - Unauthenticated Email Relay Abuse via 'woolentor_suggest_price_action' AJAX Action
The ShopLentor – WooCommerce Builder for Elementor & Gutenberg +21 Modules – All in One Solution plugin for WordPress is vulnerable to Email Relay Abuse in all versions up to, and including, 3.3.2. This is due to the lack of validation on the 'send_to', 'prod…
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High 8.7
Incus container environment configuration newline injection
Incus is a system container and virtual machine manager. In versions 6.20.0 and below, a user with the ability to launch a container with a custom YAML configuration (e.g a member of the ‘incus’ group) can create an environment variable containing newlines, w…
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High 7.5
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 7.7
cpp-httplib has CRLF injection in http headers
cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to version 0.30.0, the ``write_headers`` function does not check for CR & LF characters in user supplied headers, allowing untrusted header value to escape header lines. T…
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High 8.2
Pi-hole Admin Interface vulnerable to HTTP response header injection via CRLF injection
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level advertisement and internet tracker blocking application. Pi-hole Admin Interface before 6.3 is vulnerable to Carriage Return Line Feed (CRLF) injection. When a request is made to…
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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 -
High 8.8
A CRLF injection vulnerability in Neto CMS v6.313.0 through v6.314.0 allows attackers to execute arbitrary code via sup…
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High 8.8
PostgreSQL pg_dump newline in object name executes arbitrary code in psql client and in restore target server
Improper neutralization of newlines in pg_dump in PostgreSQL allows a user of the origin server to inject arbitrary code for restore-time execution as the client operating system account running psql to restore the dump, via psql meta-commands inside a purpos…
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High 7.2
CRLF Injection in DECE Software's Geodi
Improper Neutralization of CRLF Sequences ('CRLF Injection') vulnerability in DECE Software Geodi allows HTTP Request Splitting. This issue affects Geodi: before GEODI Setup 9.0.146.
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High 8.7
ESPAsyncWebServer Vulnerable to CRLF Injection in AsyncWebHeader.cpp
ESPAsyncWebServer is an asynchronous HTTP and WebSocket server library for ESP32, ESP8266, RP2040 and RP2350. In versions up to and including 3.7.8, a CRLF (Carriage Return Line Feed) injection vulnerability exists in the construction and output of HTTP heade…
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High 7.7
HTTP.jl vulnerable to CR/LF Injection in URIs
HTTP.jl provides HTTP client and server functionality for Julia, and URIs.jl parses and works with Uniform Resource Identifiers (URIs). URIs.jl prior to version 1.6.0 and HTTP.jl prior to version 1.10.17 allows the construction of URIs containing CR/LF charac…
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High 7.0
FreeScout Has Insufficient Protection Against CRLF-injection
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.178, the application performs insufficient validation of user-supplied data, which is used as arguments to string formatting functions. As a result, an attacker can pass a stri…
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High 7.1
QTS, QuTS hero
An improper neutralization of CRLF sequences ('CRLF Injection') vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers who have gained user access to modify application da…
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High 8.7
QTS, QuTS hero
An improper neutralization of CRLF sequences ('CRLF Injection') vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers to modify application data. We have already fixed th…
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High 8.4
Cross-Site Scripting Vulnerability in Symantec SiteMinder Web Agent
A CRLF cross-site scripting vulnerability has been identified in certain configurations of the SiteMinder Web Agent for IIS Web Server and SiteMinder Web Agent for Domino Web Server. As a result, an attacker can execute arbitrary Javascript code in a client b…
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High 8.2
A CRLF Injection vulnerability in Ivanti Connect Secure (9.x, 22.x) allows an authenticated high-privileged user to inj…
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High 7.5
Multiple vulnerabilities in Rejetto's Http File Server
The software does not neutralize or incorrectly neutralizes certain characters before the data is included in outgoing HTTP headers. The inclusion of invalidated data in an HTTP header allows an attacker to specify the full HTTP response represented by the br…
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High 8.2CVE-2024-20337 EPSS 30%
A vulnerability in the SAML authentication process of Cisco Secure Client could allow an unauthenticated, remote attack…
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High 7.5
Versions of the package yhirose/cpp-httplib before 0.12.4 are vulnerable to CRLF Injection when untrusted user input is…
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High 7.5
Async HTTP Client has CRLF Injection vulnerability in HTTP request headers
Versions of Async HTTP Client prior to 1.13.2 are vulnerable to a form of targeted request manipulation called CRLF injection. This vulnerability was the result of insufficient validation of HTTP header field values before sending them to the network. Users a…
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High 8.0
Improper handling of multiline messages in node-irc
node-irc is a socket wrapper for the IRC protocol that extends Node.js' EventEmitter. The vulnerability allows an attacker to manipulate a Matrix user into executing IRC commands by having them reply to a maliciously crafted message. Incorrect handling of a C…
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High 7.6
CRLF Injection leads to Stack Trace Exposure due to lack of filtering at https://demo.microweber.org/ in microweber/microweber
CRLF Injection leads to Stack Trace Exposure due to lack of filtering at https://demo.microweber.org/ in Packagist microweber/microweber prior to 1.2.11.
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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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High 7.5
Apache Unomi log injection
Apache Unomi prior to version 1.5.5 allows CRLF log injection because of the lack of escaping in the log statements.
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High 7.5
dio vulnerable to CRLF injection with HTTP method string
The dio package 4.0.0 for Dart allows CRLF injection if the attacker controls the HTTP method string, a different vulnerability than CVE-2020-35669.
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High 7.5
Gunicorn contains Improper Neutralization of CRLF sequences in HTTP headers
gunicorn version 19.4.5 contains a CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers vulnerability in "process_headers" function in "gunicorn/http/wsgi.py" that can result in an attacker causing the server to return arbitrary HTTP headers. Th…