CVE-2026-77634

CakePHP: SmtpTransport vulnerable to CRLF header injection

CakePHP is a rapid development framework for PHP. Prior to versions 4.5.12, 4.6.5, 5.1.8, 5.2.14, and 5.3.7 on their respective release lines, custom mail headers added with Message::setHeaders() or Message::addHeaders() do not have CRLF bytes removed, allowing header injection when user-controlled data is used in message headers. This issue is fixed in versions 4.5.12, 4.6.5, 5.1.8, 5.2.14, and 5.3.7.

CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed

Vendors

Cakephp

Products

Cakephp

CVE-2026-75922

Reverse::Proxy versions before 0.04 for Perl allow HTTP request smuggling via a percent-decoded PATH_INFO written unencoded to the upstream request line

Reverse::Proxy versions before 0.04 for Perl allow HTTP request smuggling via a percent-decoded PATH_INFO written unencoded to the upstream request line. PSGI hands PATH_INFO to an application percent-decoded, so a %XX sequence in the client URL has become a raw byte by the time the proxy sees it. The proxy appends that byte string to the upstream base URL, and for an Upgrade tunnel writes it into a request line it serializes itself, re-encoding nothing in either path. The HTTP client that sends the resulting URL does not validate the target either. A path containing %0d%0a therefore arrives at the upstream as a CRLF that ends the request line, and a decoded space, '?' or '#' truncates it the same way. Everything the client writes after the CRLF is read by the upstream as a second request. On the buffered path it arrives on a keep-alive connection the proxy pools and reuses for other clients. Its method, path and headers are all chosen by the client, and the upstream attributes it to the proxy, so it reaches upstream paths that the proxy's own routing does not expose.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Lnation

Products

Reverse Proxy

CVE-2026-75484

HTTP/2 header field values containing CR, LF or NUL are passed to the application unvalidated in Bandit

Improper Neutralization of CRLF Sequences ('CRLF Injection') vulnerability in mtrudel bandit allows an unauthenticated remote attacker to smuggle CR, LF, or NUL characters into application-visible request headers via HTTP/2. Bandit.HTTP2.Stream.read_headers/1 validates pseudo-header placement and uniqueness, header-name casing, connection-specific headers, the te value, and content-length, but never checks field values. Because HPACK carries arbitrary octets, a HEADERS block whose field values contain \r, \n, or \0 decodes without error and the values land in conn.req_headers unchanged. The HTTP/1 path already rejects the same octets; HTTP/2 did not. Bandit itself is not a sink for the injected bytes: its own logging uses fixed strings or inspect, and HTTP/2 response headers are HPACK-encoded and separately rejected by Plug's put_resp_header, so response splitting is not reachable through this path. The risk is entirely in how a downstream application consumes header values, such as appending one verbatim to a plain-text log or concatenating it into an upstream request. A related gap bundled in the same fix: only :method, :scheme, and :path were checked for at most one occurrence; a duplicate :authority pseudo-header was accepted, with the first instance silently winning as conn.host while a conflicting value remained visible to the application. This issue affects bandit: from 1.4.0 before 1.12.5.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

Mtrudel

Products

Bandit

CVE-2026-53533

aiosmtplib: SMTP command injection via CR/LF in sender/recipient address

aiosmtplib is an asynchronous SMTP client for use with asyncio. Prior to 5.1.1, SMTP.mail(), SMTP.rcpt(), SMTP.vrfy(), and SMTP.expn() send caller-supplied addresses without rejecting embedded CR or LF bytes. Data after the line break is framed as additional standalone SMTP command lines, allowing an attacker who influences an envelope sender or recipient to inject commands such as MAIL FROM, RCPT TO, RSET, DATA, or AUTH. SMTP.sendmail() and SMTP.send() without a Message object pass addresses through the affected methods, while SMTP.send_message() is not affected. Successful injection can desynchronize the command-response pipeline, hang the SMTP instance, or send an arbitrary message without requiring attacker control of the SMTP server. This issue is fixed in version 5.1.1.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

Cole

Products

Aiosmtplib

CVE-2026-21062

Local Clipboard Data Access via Authorization Bypass in Samsung SemClipboardService

Authorization bypass in SemClipboardService prior to SMR Aug-2026 Release 1 allows local attackers to access clipboard data.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed

Vendors

Samsung Samsung Mobile

Products

Android Samsung Mobile Devices

CVE-2026-49756

Multipart form-data header injection in Req via unescaped name/filename/content_type

Improper Neutralization of CRLF Sequences ('CRLF Injection') vulnerability in wojtekmach Req allows multipart parameter smuggling via attacker-influenced part metadata. Req.Utils.encode_form_part/2 in lib/req/utils.ex builds the per-part headers by interpolating the caller-supplied name, filename, and content_type values directly into the content-disposition and content-type lines with no escaping or CRLF stripping. A value containing ", \r, or \n closes the surrounding quoted value and starts a new header line; an additional \r\n--<boundary> terminates the current part and prepends a smuggled part of the attacker's choosing. This is reachable through every supported way of supplying a part. It is particularly easy when value is a %File.Stream{}, because filename then defaults to Path.basename(stream.path) and POSIX filenames may legitimately contain \r and \n. Any application that forwards user-controlled filenames (or field names / MIME types) through Req.post/2 with form_multipart: lets an attacker inject arbitrary headers into the outgoing multipart body or smuggle additional fields and parts into the request the victim service sends downstream. This issue affects req: from 0.5.3 before 0.6.0.

CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed

Vendors

Wojtekmach

Products

Req

CVE-2026-0864

Configuration Injection via Carriage Return (\r) in write() method

When using the "configparser" module to write configuration files containing multi-line text values with carriage return characters (\r) the resulting file could be injected with unexpected keys and values if the attacker controls the written value.

CVSS 4.0 · 4.1 Medium EPSS < 1% KEV · Not listed

Vendors

Python

Products

Cpython Python

CVE-2026-67326

GitPython before 3.1.50 Newline Injection via config_writer section

GitPython before 3.1.50 fails to validate newline characters in the section parameter of config_writer(), allowing attackers to inject arbitrary section headers into .git/config. Attackers can inject newlines to create a forged [core] section with hooksPath pointing to attacker-controlled directories, achieving remote code execution when git hooks are triggered.

CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Gitpython-developers Gitpython Project Redhat

Products

Gitpython Gitpython Hummingbird

CVE-2026-53788

rsync < 3.5.0 Newline Injection via name-converter uid/gid mapping

rsync before 3.5.0 contains a newline injection vulnerability in the name-converter uid/gid mapping interface that allows local attackers to forge protocol messages by creating user or group names containing newline characters. Attackers can inject malicious newline characters into names communicated over the pipe-based line-oriented protocol to cause the rsync daemon to process attacker-influenced data as legitimate protocol input, corrupting uid/gid mapping logic.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

Rsync Project Samba

Products

Rsync Rsync

CVE-2020-3561

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN CRLF Injection Vulnerability

A vulnerability in the Clientless SSL VPN (WebVPN) of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to inject arbitrary HTTP headers in the responses of the affected system. The vulnerability is due to improper input sanitization. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to conduct a CRLF injection attack, adding arbitrary HTTP headers in the responses of the system and redirecting the user to arbitrary websites.

CVSS 3.1 · 4.7 Medium EPSS 1.3% KEV · Not listed

Vendors

Cisco

Products

Adaptive Security Appliance Adaptive Security Appliance Software Secure Firewall Threat Defense

CVE-2026-72913

Kitty: Command injection into the child shell via chained @kitty-echo + @kitty-ssh DCS escape sequences

Kitty is a cross-platform GPU based terminal. Prior to 0.48.2, the @kitty-echo and @kitty-ssh DCS handlers in kitty/window.py write unauthenticated data to the child shell's stdin, where handle_remote_echo accepts printable shell command characters and handle_remote_ssh calls get_ssh_data in kittens/ssh/utils.py, which emits a newline; chaining the handlers can execute attacker-controlled commands when a user displays untrusted terminal data. This issue is fixed in version 0.48.2.

CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Kovidgoyal

Products

Kitty

CVE-2026-21075

Improper Authorization in My Galaxy URL Scheme Enables Sensitive Data Access

Improper authorization in handler for custom URL scheme in My Galaxy prior to version 6.3 allows remote attackers to access sensitive information.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Samsung Mobile

Products

My Galaxy

CVE-2026-72590

alseambusher crontab-ui - Unauthenticated RCE via Newline Injection in env_vars Parameter

An OS command injection vulnerability in alseambusher/crontab-ui through 0.4.2 allows an unauthenticated remote attacker to inject arbitrary cron job entries by sending a crafted GET request to /crontab with URL-encoded newlines in the env_vars parameter.

CVSS 3.1 · 9.8 Critical EPSS 2.0% KEV · Not listed

Vendors

Alseambusher

Products

Crontab-ui

CVE-2026-0673

Element Pack Addons for Elementor <= 8.3.15 - Unauthenticated SMTP Header Injection

The Element Pack Addons for Elementor plugin for WordPress is vulnerable to Email Header Injection in all versions up to, and including, 8.3.15 via the `element_pack_contact_form` AJAX action. This is due to insufficient sanitization of newline characters in user-supplied input that gets concatenated into email headers. This makes it possible for unauthenticated attackers to inject arbitrary email headers into emails sent by the contact form.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Bdthemes Wordpress

Products

Element Pack Addons For Elementor Wordpress

CVE-2026-59717

Home Assistant Companion: `homeassistant://invite` Deep Link Credential Phishing

Home Assistant is open source home automation software focused on local control and privacy. Prior to 2026.6.1, the Android Companion app is vulnerable to an open redirect. The app passes the URL fragment from a homeassistant://invite deep link into the onboarding flow without ever displaying the destination hostname. Because no screen in the invitation or onboarding flow shows the parsed server URL before onboarding commits to it, a victim has no way to distinguish a legitimate invite from a malicious one. An attacker can craft an invite so that a single tap on the legitimate-looking "Connect to my Home Assistant server" button opens their /auth/authorize endpoint in the URL-less onboarding WebView, presenting a look-alike login page that captures the victim's credentials. Since invitations are intended to onboard brand-new users, targets are especially unlikely to notice the substitution. This issue is fixed in version 2026.6.1.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Home-assistant

Products

Core

CVE-2026-50629

Apache CXF: OAuth2: Log Injection via Unsanitized Client Identifier

The 'clientId' parameter from incoming HTTP requests is directly concatenated into OAuth2 server log warning messages without sanitizing control characters. This allows an attacker to inject arbitrary content, including fake log entries, into the server's log files. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Apache

Products

Cxf

CVE-2026-71311

rclone: FTP Command Arguments Permit CRLF Injection When Custom Encoding Preserves Newlines

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.0, a valid but nondefault FTP filename encoding in backend/ftp/ftp.go can restore raw CR/LF immediately before an attacker-controlled path is interpolated into the line-oriented FTP control channel, and github.com/jlaffaye/ftp formats the argument through textproto.Conn.Cmd without rejecting CR or LF, allowing a filename such as victim CRLF DELE other-secret CRLF NOOP to inject an independent authenticated FTP command when the victim copies or syncs to a more-privileged FTP destination. This issue is fixed in 1.75.0.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed

Vendors

Rclone

Products

Rclone

CVE-2026-67289

FreeRDP before 3.29.0 HTTP Proxy Request Injection via Redirection

FreeRDP before 3.29.0 (affected versions <= 3.28.0) does not validate CRLF and control characters in the server-controlled RDP redirection TargetNetAddress field. This value is copied into the client's ServerHostname and, when the client connects through an HTTP proxy, is written directly into the proxy CONNECT request line and Host header by http_proxy_connect() without filtering. A malicious or compromised RDP server can send a crafted redirection PDU containing embedded control characters to inject arbitrary headers/requests into the HTTP proxy CONNECT request.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed

Vendors

Freerdp

Products

Freerdp

CVE-2026-15157

undici vulnerable to CRLF Injection via blob-like body 'type' property

undici does not validate the type property of a duck-typed blob-like request body before using it as the Content-Type header on the HTTP/1.1 dispatcher. In undici before 6.28.0, from 7.0.0 up to before 7.29.0, and from 8.0.0 up to before 8.9.0, an application that passes a hand-rolled blob-like body (via request, stream, pipeline, or dispatch) whose type is derived from untrusted input allows an attacker to inject CRLF sequences and append arbitrary HTTP headers, potentially smuggling a second request past the upstream. Native Blob objects are safe because their constructor strips CRLF from the type, and fetch is unaffected because it validates headers, but ecosystem libraries that build duck-typed blob shapes from user input can reach the vulnerable path. This is the same defect class as CVE-2022-35948 and CVE-2026-1527, on a header sink that the earlier fixes did not cover. The issue is fixed in undici 6.28.0, 7.29.0, and 8.9.0.

CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed

Vendors

Nodejs Redhat Undici

Products

Undici Hummingbird Undici

CVE-2026-44092

Missing input validation / stripping of CRLF characters in SystemConfigManager

An unauthenticated remote attacker can inject malicious input into the ModbusServer application because it does not validate the input it fetches from MQTT. This may lead to integrity and availability loss.

CVSS 4.0 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Phoenix Contact Phoenixcontact

Products

Charx Sec 3000 Charx Sec 3050 Charx Sec 3100 and 5 more