GHSA-RX22-G9MX-QRHV Rack's improper unfolding of folded multipart headers preserves CRLF in parsed parameter values

Summary Rack::Multipart::Parser unfolds folded multipart part headers incorrectly. When a multipart header contains an obs-fold sequence, Rack preserves the embedded CRLF in parsed parameter values such as filename or name instead of removing the folded line break during unfolding. As a result,...

CVE-2026-34715

ewe is a Gleam web server. Prior to version 3.0.6, the encodeheaders function in src/ewe/internal/encoder.gleam directly interpolates response header keys and values into raw HTTP bytes without validating or stripping CRLF \r\n sequences. An application that passes user-controlled data into...

UBUNTU-CVE-2026-26962

Rack is a modular Ruby web server interface. From version 3.2.0 to before version 3.2.6, Rack::Multipart::Parser unfolds folded multipart part headers incorrectly. When a multipart header contains an obs-fold sequence, Rack preserves the embedded CRLF in parsed parameter values such as filename o...

CVE-2026-34715

Vulnerability: ewe (Gleam web server) prior to 3.0.6 allows HTTP header injection via encode_headers in src/ewe/internal/encoder.gleam. The function directly interpolates response header keys and values into raw HTTP bytes without validating or stripping CRLF sequences, so user-controlled data (e...

Rack's improper unfolding of folded multipart headers preserves CRLF in parsed parameter values

Summary Rack::Multipart::Parser unfolds folded multipart part headers incorrectly. When a multipart header contains an obs-fold sequence, Rack preserves the embedded CRLF in parsed parameter values such as filename or name instead of removing the folded line break during unfolding. As a result,...

AIOHTTP has CRLF injection through multipart part content type header construction

Summary An attacker who controls the contenttype parameter in aiohttp could use this to inject extra headers or similar exploits. Impact If an application allows untrusted data to be used for the multipart contenttype parameter when constructing a request, an attacker may be able to manipulate th...

CVE-2026-34514

CVE-2026-34514 affects AIOHTTP prior to 3.13.4, where the content_type parameter used when constructing multipart headers could enable CRLF injection leading to extra header insertion. The vulnerability is mitigated by upgrading to 3.13.4, which patches the issue. The CVSS data (MEDIUM, network v...

Important: nodejs22

Issue Overview: Undici allows duplicate HTTP Content-Length headers when they are provided in an array with case-variant names e.g., Content-Length and content-length. This produces malformed HTTP/1.1 requests with multiple conflicting Content-Length values on the wire. Who is impacted:...

Mailpit < 1.28.2 - SMTP CRLF Injection

Mailpit 1.28 contains a header injection caused by insufficient regex validation of RCPT TO and MAIL FROM addresses in the SMTP server, letting attackers inject arbitrary SMTP headers, exploit requires crafted email addresses id: CVE-2026-23829 info: name: Mailpit 1.28.2 - SMTP CRLF Injection...

Amazon Linux 2023 : gvfs, gvfs-archive, gvfs-client (ALAS2023-2026-1475)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1475 advisory. A flaw was found in the FTP GVfs backend. A malicious FTP server can exploit this vulnerability by providing an arbitrary IP address and port in its passive mode PASV response. The client...

curl: CRLF Injection in HAProxy PROXY Protocol via CURLOPT_HAPROXY_CLIENT_IP allows IP spoofing and protocol injection

Summary: CURLOPTHAPROXYCLIENTIP introduced in curl 8.2.0 accepts arbitrary strings without any validation or sanitization before injecting them into the HAProxy PROXY protocol v1 header. An attacker who can influence the value passed to this option e.g., through a web application that proxies...

CRLF Injection

Overview org.webjars.npm:nodemailer is an Easy as cake e-mail sending from your Node.js applications Affected versions of this package are vulnerable to CRLF Injection via the envelope.size parameter in the sendMail function. An attacker can inject arbitrary SMTP commands by supplying CRLF...

CRLF Injection

Overview nodemailer is an Easy as cake e-mail sending from your Node.js applications Affected versions of this package are vulnerable to CRLF Injection via the envelope.size parameter in the sendMail function. An attacker can inject arbitrary SMTP commands by supplying CRLF characters in the size...

UBUNTU-CVE-2026-33635

iCalendar is a Ruby library for dealing with iCalendar files in the iCalendar format defined by RFC-5545. Starting in version 2.0.0 and prior to version 2.12.2, .ics serialization does not properly sanitize URI property values, enabling ICS injection through attacker-controlled input, adding...

curl: Security Vulnerability Report: Protocol Injection via Programmatic Options

Summary Multiple text-based protocol handlers in libcurl including FTP, SMTP, POP3, and IMAP are vulnerable to protocol command injection. This occurs when an application sets credentials or other protocol-specific options programmatically e.g., via CURLOPTUSERNAME, CURLOPTPASSWORD, or...

CVE-2026-20113

A vulnerability in the web-based Cisco IOx application hosting environment management interface of Cisco IOS XE Software could allow an unauthenticated, remote attacker to perform a carriage return line feed CRLF injection attack against a user. This vulnerability is due to insufficient validatio...

CVE-2026-20113

The CVE affects the web-based Cisco IOx application hosting environment management interface in Cisco IOS XE Software. It arises from insufficient input validation and enables a remote, unauthenticated attacker to perform a CRLF injection, potentially injecting or altering log entries and obscuri...

SUSE CVE-2026-28753

NGINX Plus and NGINX Open Source have a vulnerability in the ngxmailsmtpmodule module due to the improper handling of CRLF sequences in DNS responses. This allows an attacker-controlled DNS server to inject arbitrary headers into SMTP upstream requests, leading to potential request manipulation...

PT-2026-27796

Name of the Vulnerable Software and Affected Versions Cisco IOS XE Software affected versions not specified Description A flaw exists in the web-based Cisco IOx application hosting environment management interface that could allow a remote attacker to inject carriage return line feed CRLF...

iCalendar has ICS injection via unsanitized URI property values

Summary .ics serialization does not properly sanitize URI property values, enabling ICS injection through attacker-controlled input, adding arbitrary calendar lines to the output. Details Icalendar::Values::Uri falls back to the raw input string when URI.parse fails and later serializes it with...