CWE-113
Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
Description
The product receives data from an HTTP agent/component (e.g., web server, proxy, browser, etc.), but it does not neutralize or incorrectly neutralizes CR and LF characters before the data is included in outgoing HTTP headers.
Hierarchy (View 1000)
Related attack patterns (CAPEC)
CAPEC-105 · CAPEC-31 · CAPEC-34 · CAPEC-85
CVEs mapped to this weakness (131)
page 4 of 7| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-7010 | Med | 0.35 | 6.5 | 0.00 | May 11, 2026 | HTTP::Tiny versions before 0.093 for Perl do not validate CRLF in HTTP request lines or control field header values. The unvalidated inputs are the method and URI in the request line, the URL host that becomes the `Host:` header, and HTTP/1.1 control data field values. An… | ||
| CVE-2025-41234 | Med | 0.35 | 6.5 | 0.01 | Jun 12, 2025 | Description In Spring Framework, versions 6.0.x as of 6.0.5, versions 6.1.x and 6.2.x, an application is vulnerable to a reflected file download (RFD) attack when it sets a “Content-Disposition” header with a non-ASCII charset, where the filename attribute is derived from… | ||
| CVE-2024-40324 | Med | 0.35 | 5.4 | 0.01 | Jul 25, 2024 | A CRLF injection vulnerability in E-Staff v5.1 allows attackers to insert Carriage Return (CR) and Line Feed (LF) characters into input fields, leading to HTTP response splitting and header manipulation. | ||
| CVE-2022-42471 | Med | 0.35 | 5.4 | 0.00 | Jan 3, 2023 | An improper neutralization of CRLF sequences in HTTP headers ('HTTP Response Splitting') vulnerability [CWE-113] In FortiWeb version 7.0.0 through 7.0.2, FortiWeb version 6.4.0 through 6.4.2, FortiWeb version 6.3.6 through 6.3.20 may allow an authenticated and remote… | ||
| CVE-2022-41915 | Med | 0.35 | 6.5 | 0.01 | Dec 13, 2022 | Netty project is an event-driven asynchronous network application framework. Starting in version 4.1.83.Final and prior to 4.1.86.Final, when calling `DefaultHttpHeadesr.set` with an _iterator_ of values, header value validation was not performed, allowing malicious header… | ||
| CVE-2020-10753 | Med | 0.35 | 5.4 | 0.02 | Jun 26, 2020 | A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway). The vulnerability is related to the injection of HTTP headers via a CORS ExposeHeader tag. The newline character in the ExposeHeader tag in the CORS configuration file generates a header injection in the… | ||
| CVE-2020-5249 | Med | 0.35 | 6.5 | 0.02 | Mar 2, 2020 | In Puma (RubyGem) before 4.3.3 and 3.12.4, if an application using Puma allows untrusted input in an early-hints header, an attacker can use a carriage return character to end the header and inject malicious content, such as additional headers or an entirely new response body.… | ||
| CVE-2020-5247 | Med | 0.35 | 6.5 | 0.03 | Feb 28, 2020 | In Puma (RubyGem) before 4.3.2 and before 3.12.3, if an application using Puma allows untrusted input in a response header, an attacker can use newline characters (i.e. `CR`, `LF` or`/r`, `/n`) to end the header and inject malicious content, such as additional headers or an… | ||
| CVE-2017-17742 | Med | 0.35 | 5.3 | 0.05 | Apr 3, 2018 | Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 allows an HTTP Response Splitting attack. An attacker can inject a crafted key and value into an HTTP response for the HTTP server of WEBrick. | ||
| CVE-2017-12309 | Med | 0.35 | 5.3 | 0.02 | Nov 16, 2017 | A vulnerability in the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to conduct a HTTP response splitting attack. The vulnerability is due to the failure of the application or its environment to properly sanitize input values. An attacker… | ||
| CVE-2026-77360 | Med | 0.34 | — | 0.01 | Sep 16, 2026 | oRPC is an tool that helps build APIs that are end-to-end type-safe and adhere to OpenAPI standards. Prior to 1.14.8, the @orpc/server CORS plugin in packages/server/src/plugins/cors.ts copies a client's incoming Vary request header into the response instead of controlling Vary… | ||
| CVE-2024-24795 | Med | 0.34 | 6.3 | 0.03 | Apr 4, 2024 | 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. | ||
| CVE-2023-48256 | Med | 0.34 | 5.3 | 0.00 | Jan 10, 2024 | The vulnerability allows a remote attacker to inject arbitrary HTTP response headers or manipulate HTTP response bodies inside a victim’s session via a crafted URL or HTTP request. | ||
| CVE-2023-26147 | Med | 0.34 | 5.3 | 0.00 | Sep 29, 2023 | All versions of the package ithewei/libhv are vulnerable to HTTP Response Splitting when untrusted user input is used to build headers values. An attacker can add the \r\n (carriage return line feeds) characters to end the HTTP response headers and inject malicious content, like… | ||
| CVE-2019-25101 | Med | 0.34 | 6.3 | 0.01 | Feb 4, 2023 | A vulnerability classified as critical has been found in OnShift TurboGears 1.0.11.10. This affects an unknown part of the file turbogears/controllers.py of the component HTTP Header Handler. The manipulation leads to http response splitting. It is possible to initiate the… | ||
| CVE-2017-7528 | Med | 0.34 | 5.2 | 0.01 | Aug 22, 2018 | Ansible Tower as shipped with Red Hat CloudForms Management Engine 5 is vulnerable to CRLF Injection. It was found that X-Forwarded-For header allows internal servers to deploy other systems (using callback). | ||
| CVE-2024-45302 | Med | 0.33 | 6.1 | 0.00 | Aug 29, 2024 | RestSharp is a Simple REST and HTTP API Client for .NET. The second argument to `RestRequest.AddHeader` (the header value) is vulnerable to CRLF injection. The same applies to `RestRequest.AddOrUpdateHeader` and `RestClient.AddDefaultHeader`. The way HTTP headers are added to a… | ||
| CVE-2021-40336 | Med | 0.33 | 5.0 | 0.00 | Jul 25, 2022 | A vulnerability exists in the http web interface where the web interface does not validate data in an HTTP header. This causes a possible HTTP response splitting, which if exploited could lead an attacker to channel down harmful code into the user’s web browser, such as to… | ||
| CVE-2016-4993 | Med | 0.33 | 6.1 | 0.03 | Sep 26, 2016 | CRLF injection vulnerability in the Undertow web server in WildFly 10.0.0, as used in Red Hat JBoss Enterprise Application Platform (EAP) 7.x before 7.0.2, allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified… | ||
| CVE-2016-0789 | Med | 0.33 | 6.1 | 0.02 | Apr 7, 2016 | CRLF injection vulnerability in the CLI command documentation in Jenkins before 1.650 and LTS before 1.642.2 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors. |
- risk 0.35cvss 6.5epss 0.00
HTTP::Tiny versions before 0.093 for Perl do not validate CRLF in HTTP request lines or control field header values. The unvalidated inputs are the method and URI in the request line, the URL host that becomes the `Host:` header, and HTTP/1.1 control data field values. An…
- risk 0.35cvss 6.5epss 0.01
Description In Spring Framework, versions 6.0.x as of 6.0.5, versions 6.1.x and 6.2.x, an application is vulnerable to a reflected file download (RFD) attack when it sets a “Content-Disposition” header with a non-ASCII charset, where the filename attribute is derived from…
- risk 0.35cvss 5.4epss 0.01
A CRLF injection vulnerability in E-Staff v5.1 allows attackers to insert Carriage Return (CR) and Line Feed (LF) characters into input fields, leading to HTTP response splitting and header manipulation.
- risk 0.35cvss 5.4epss 0.00
An improper neutralization of CRLF sequences in HTTP headers ('HTTP Response Splitting') vulnerability [CWE-113] In FortiWeb version 7.0.0 through 7.0.2, FortiWeb version 6.4.0 through 6.4.2, FortiWeb version 6.3.6 through 6.3.20 may allow an authenticated and remote…
- risk 0.35cvss 6.5epss 0.01
Netty project is an event-driven asynchronous network application framework. Starting in version 4.1.83.Final and prior to 4.1.86.Final, when calling `DefaultHttpHeadesr.set` with an _iterator_ of values, header value validation was not performed, allowing malicious header…
- risk 0.35cvss 5.4epss 0.02
A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway). The vulnerability is related to the injection of HTTP headers via a CORS ExposeHeader tag. The newline character in the ExposeHeader tag in the CORS configuration file generates a header injection in the…
- risk 0.35cvss 6.5epss 0.02
In Puma (RubyGem) before 4.3.3 and 3.12.4, if an application using Puma allows untrusted input in an early-hints header, an attacker can use a carriage return character to end the header and inject malicious content, such as additional headers or an entirely new response body.…
- risk 0.35cvss 6.5epss 0.03
In Puma (RubyGem) before 4.3.2 and before 3.12.3, if an application using Puma allows untrusted input in a response header, an attacker can use newline characters (i.e. `CR`, `LF` or`/r`, `/n`) to end the header and inject malicious content, such as additional headers or an…
- risk 0.35cvss 5.3epss 0.05
Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 allows an HTTP Response Splitting attack. An attacker can inject a crafted key and value into an HTTP response for the HTTP server of WEBrick.
- risk 0.35cvss 5.3epss 0.02
A vulnerability in the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to conduct a HTTP response splitting attack. The vulnerability is due to the failure of the application or its environment to properly sanitize input values. An attacker…
- risk 0.34cvss —epss 0.01
oRPC is an tool that helps build APIs that are end-to-end type-safe and adhere to OpenAPI standards. Prior to 1.14.8, the @orpc/server CORS plugin in packages/server/src/plugins/cors.ts copies a client's incoming Vary request header into the response instead of controlling Vary…
- risk 0.34cvss 6.3epss 0.03
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.
- risk 0.34cvss 5.3epss 0.00
The vulnerability allows a remote attacker to inject arbitrary HTTP response headers or manipulate HTTP response bodies inside a victim’s session via a crafted URL or HTTP request.
- risk 0.34cvss 5.3epss 0.00
All versions of the package ithewei/libhv are vulnerable to HTTP Response Splitting when untrusted user input is used to build headers values. An attacker can add the \r\n (carriage return line feeds) characters to end the HTTP response headers and inject malicious content, like…
- risk 0.34cvss 6.3epss 0.01
A vulnerability classified as critical has been found in OnShift TurboGears 1.0.11.10. This affects an unknown part of the file turbogears/controllers.py of the component HTTP Header Handler. The manipulation leads to http response splitting. It is possible to initiate the…
- risk 0.34cvss 5.2epss 0.01
Ansible Tower as shipped with Red Hat CloudForms Management Engine 5 is vulnerable to CRLF Injection. It was found that X-Forwarded-For header allows internal servers to deploy other systems (using callback).
- risk 0.33cvss 6.1epss 0.00
RestSharp is a Simple REST and HTTP API Client for .NET. The second argument to `RestRequest.AddHeader` (the header value) is vulnerable to CRLF injection. The same applies to `RestRequest.AddOrUpdateHeader` and `RestClient.AddDefaultHeader`. The way HTTP headers are added to a…
- risk 0.33cvss 5.0epss 0.00
A vulnerability exists in the http web interface where the web interface does not validate data in an HTTP header. This causes a possible HTTP response splitting, which if exploited could lead an attacker to channel down harmful code into the user’s web browser, such as to…
- risk 0.33cvss 6.1epss 0.03
CRLF injection vulnerability in the Undertow web server in WildFly 10.0.0, as used in Red Hat JBoss Enterprise Application Platform (EAP) 7.x before 7.0.2, allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified…
- risk 0.33cvss 6.1epss 0.02
CRLF injection vulnerability in the CLI command documentation in Jenkins before 1.650 and LTS before 1.642.2 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.