Total
104 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-27810 | 2 Calibre-ebook, Kovidgoyal | 2 Calibre, Calibre | 2026-03-04 | 6.4 Medium |
| calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.4.0, an HTTP Response Header Injection vulnerability in the calibre Content Server allows any authenticated user to inject arbitrary HTTP headers into server responses via an unsanitized `content_disposition` query parameter in the `/get/` and `/data-files/get/` endpoints. All users running the calibre Content Server with authentication enabled are affected. The vulnerability is exploitable by any authenticated user and can also be triggered by tricking an authenticated victim into clicking a crafted link. Version 9.4.0 contains a fix for the issue. | ||||
| CVE-2026-23686 | 1 Sap | 2 Netweaver Application Server Java, Sap Netweaver Application Server Java | 2026-02-17 | 3.4 Low |
| Due to a CRLF Injection vulnerability in SAP NetWeaver Application Server Java, an authenticated attacker with administrative access could submit specially crafted content to the application. If processed by the application, this content enables injection of untrusted entries into generated configuration, allowing manipulation of application-controlled settings. Successful exploitation leads to a low impact on integrity, while confidentiality and availability remain unaffected. | ||||
| CVE-2026-24320 | 2 Sap, Sap Se | 4 Netweaver As Abap Kernel, Netweaver As Abap Krnl64nuc, Netweaver As Abap Krnl64uc and 1 more | 2026-02-17 | 3.1 Low |
| Due to improper memory management in SAP NetWeaver and ABAP Platform (Application Server ABAP), an authenticated attacker could exploit logical errors in memory management by supplying specially crafted input containing unique characters, which are improperly converted. This may result in memory corruption and the potential leakage of memory content. Successful exploitation of this vulnerability would have a low impact on the confidentiality of the application, with no effect on its integrity or availability. | ||||
| CVE-2026-24489 | 1 Happyhackingspace | 1 Gakido | 2026-01-27 | 5.3 Medium |
| Gakido is a Python HTTP client focused on browser impersonation and anti-bot evasion. A vulnerability was discovered in Gakido prior to version 0.1.1 that allowed HTTP header injection through CRLF (Carriage Return Line Feed) sequences in user-supplied header values and names. When making HTTP requests with user-controlled header values containing `\r\n` (CRLF), `\n` (LF), or `\x00` (null byte) characters, an attacker could inject arbitrary HTTP headers into the request. The fix in version 0.1.1 adds a `_sanitize_header()` function that strips `\r`, `\n`, and `\x00` characters from both header names and values before they are included in HTTP requests. | ||||
| CVE-2026-22779 | 1 Neoteroi | 1 Blacksheep | 2026-01-22 | 5.3 Medium |
| BlackSheep is an asynchronous web framework to build event based web applications with Python. Prior to 2.4.6, the HTTP Client implementation in BlackSheep is vulnerable to CRLF injection. Missing headers validation makes it possible for an attacker to modify the HTTP requests (e.g. insert a new header) or even create a new HTTP request. Exploitation requires developers to pass unsanitized user input directly into headers.The server part is not affected because BlackSheep delegates to an underlying ASGI server handling of response headers. This vulnerability is fixed in 2.4.6. | ||||
| CVE-2025-59151 | 1 Pi-hole | 2 Pi-hole, Web Interface | 2025-12-18 | 8.2 High |
| 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 a file ending with the .lp extension, the application performs a redirect without properly sanitizing the input. An attacker can inject carriage return and line feed characters (%0d%0a) to manipulate both the headers and the content of the HTTP response. This enables the injection of arbitrary HTTP response headers, potentially leading to session fixation, cache poisoning, and the weakening or bypassing of browser-based security mechanisms such as Content Security Policy or X-XSS-Protection. This vulnerability is fixed in 6.3. | ||||
| CVE-2023-25690 | 2 Apache, Redhat | 8 Http Server, Enterprise Linux, Jboss Core Services and 5 more | 2025-12-18 | 9.8 Critical |
| Some mod_proxy configurations on Apache HTTP Server versions 2.4.0 through 2.4.55 allow a HTTP Request Smuggling attack. Configurations are affected when mod_proxy is enabled along with some form of RewriteRule or ProxyPassMatch in which a non-specific pattern matches some portion of the user-supplied request-target (URL) data and is then re-inserted into the proxied request-target using variable substitution. For example, something like: RewriteEngine on RewriteRule "^/here/(.*)" "http://example.com:8080/elsewhere?$1"; [P] ProxyPassReverse /here/ http://example.com:8080/ Request splitting/smuggling could result in bypass of access controls in the proxy server, proxying unintended URLs to existing origin servers, and cache poisoning. Users are recommended to update to at least version 2.4.56 of Apache HTTP Server. | ||||
| CVE-2024-42516 | 1 Apache | 2 Apache Http Server, Http Server | 2025-11-04 | 7.5 High |
| HTTP response splitting in the core of Apache HTTP Server allows an attacker who can manipulate the Content-Type response headers of applications hosted or proxied by the server can split the HTTP response. This vulnerability was described as CVE-2023-38709 but the patch included in Apache HTTP Server 2.4.59 did not address the issue. Users are recommended to upgrade to version 2.4.64, which fixes this issue. | ||||
| CVE-2023-38709 | 7 Apache, Apple, Broadcom and 4 more | 9 Http Server, Macos, Fabric Operating System and 6 more | 2025-11-04 | 7.3 High |
| Faulty input validation in the core of Apache allows malicious or exploitable backend/content generators to split HTTP responses. This issue affects Apache HTTP Server: through 2.4.58. | ||||
| CVE-2021-33621 | 3 Fedoraproject, Redhat, Ruby-lang | 6 Fedora, Enterprise Linux, Rhel Eus and 3 more | 2025-11-04 | 8.8 High |
| The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response splitting. This is relevant to applications that use untrusted user input either to generate an HTTP response or to create a CGI::Cookie object. | ||||
| CVE-2025-61689 | 2025-10-14 | N/A | ||
| HTTP.jl is an HTTP client and server functionality for the Julia programming language. Prior to version 1.10.19, HTTP.jl did not validate header names/values for illegal characters, allowing CRLF-based header injection and response splitting. This enables HTTP response splitting and header injection, leading to cache poisoning, XSS, session fixation, and more. This issue is fixed in HTTP.jl `v1.10.19`. | ||||
| CVE-2024-52875 | 1 Gfi | 1 Kerio Control | 2025-09-16 | 8.8 High |
| An issue was discovered in GFI Kerio Control 9.2.5 through 9.4.5. The dest GET parameter passed to the /nonauth/addCertException.cs and /nonauth/guestConfirm.cs and /nonauth/expiration.cs pages is not properly sanitized before being used to generate a Location HTTP header in a 302 HTTP response. This can be exploited to perform Open Redirect or HTTP Response Splitting attacks, which in turn lead to Reflected Cross-Site Scripting (XSS). Remote command execution can be achieved by leveraging the upgrade feature in the admin interface. | ||||
| CVE-2025-40927 | 2025-08-29 | 7.3 High | ||
| CGI::Simple versions before 1.282 for Perl has a HTTP response splitting flaw This vulnerability is a confirmed HTTP response splitting flaw in CGI::Simple that allows HTTP response header injection, which can be used for reflected XSS or open redirect under certain conditions. Although some validation exists, it can be bypassed using URL-encoded values, allowing an attacker to inject untrusted content into the response via query parameters. As a result, an attacker can inject a line break (e.g. %0A) into the parameter value, causing the server to split the HTTP response and inject arbitrary headers or even an HTML/JavaScript body, leading to reflected cross-site scripting (XSS), open redirect or other attacks. The issue documented in CVE-2010-4410 https://www.cve.org/CVERecord?id=CVE-2010-4410 is related but the fix was incomplete. Impact By injecting %0A (newline) into a query string parameter, an attacker can: * Break the current HTTP header * Inject a new header or entire body * Deliver a script payload that is reflected in the server’s response That can lead to the following attacks: * reflected XSS * open redirect * cache poisoning * header manipulation | ||||
| CVE-2025-42934 | 1 Sap | 1 S/4hana | 2025-08-12 | 4.3 Medium |
| SAP S/4HANA Supplier invoice is vulnerable to CRLF Injection. An attacker with user-level privileges can bypass the allowlist and insert untrusted sites into the 'Trusted Sites' configuration by injecting line feed (LF) characters into application inputs. This vulnerability has a low impact on the application's integrity and no impact on confidentiality or availability. | ||||
| CVE-2024-54021 | 1 Fortinet | 2 Fortios, Fortiproxy | 2025-08-08 | 6.4 Medium |
| An Improper Neutralization of CRLF Sequences in HTTP Headers ('http response splitting') vulnerability [CWE-113] in Fortinet FortiOS 7.2.0 through 7.6.0, FortiProxy 7.2.0 through 7.4.5 may allow a remote unauthenticated attacker to bypass the file filter via crafted HTTP headers. | ||||
| CVE-2024-20392 | 1 Cisco | 7 Asyncos, Secure Email Gateway C195, Secure Email Gateway C395 and 4 more | 2025-08-06 | 6.1 Medium |
| A vulnerability in the web-based management API of Cisco AsyncOS Software for Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to conduct an HTTP response splitting attack. This vulnerability is due to insufficient input validation of some parameters that are passed to the web-based management API of the affected system. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to perform cross-site scripting (XSS) attacks, resulting in the execution of arbitrary script code in the browser of the targeted user, or could allow the attacker to access sensitive, browser-based information. | ||||
| CVE-2025-0825 | 1 Yhirose | 1 Cpp-httplib | 2025-08-04 | 5.3 Medium |
| cpp-httplib version v0.17.3 through v0.18.3 fails to filter CRLF characters ("\r\n") when those are prefixed with a null byte. This enables attackers to exploit CRLF injection that could further lead to HTTP Response Splitting, XSS, and more. | ||||
| CVE-2025-0588 | 3 Linux, Microsoft, Octopus | 3 Linux Kernel, Windows, Octopus Server | 2025-07-02 | 4.9 Medium |
| In affected versions of Octopus Server it was possible for a user with sufficient access to set custom headers in all server responses. By submitting a specifically crafted referrer header the user could ensure that all subsequent server responses would return 500 errors rendering the site mostly unusable. The user would be able to subsequently set and unset the referrer header to control the denial of service state with a valid CSRF token whilst new CSRF tokens could not be generated. | ||||
| CVE-2025-53094 | 2025-06-30 | N/A | ||
| 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 headers within `AsyncWebHeader.cpp`. Unsanitized input allows attackers to inject CR (`\r`) or LF (`\n`) characters into header names or values, leading to arbitrary header or response manipulation. Manipulation of HTTP headers and responses can enable a wide range of attacks, making the severity of this vulnerability high. A fix is available at pull request 211 and is expected to be part of version 3.7.9. | ||||
| CVE-2024-24795 | 7 Apache, Apple, Broadcom and 4 more | 8 Http Server, Macos, Fabric Operating System and 5 more | 2025-06-30 | 6.3 Medium |
| HTTP Response splitting in multiple modules in Apache HTTP Server allows an attacker that can inject malicious response headers into backend applications to cause an HTTP desynchronization attack. Users are recommended to upgrade to version 2.4.59, which fixes this issue. | ||||