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CWE-74

5,679 CVEs • Abstraction: Class • Likelihood of Exploit: High

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

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CVEs (5,679)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
3Canonical
DebianHaproxy
3Debian Linux
HaproxyUbuntu Linux
Jun 17, 2026
Nov 27, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by carriage return (CR, ASCII 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII 0x0), aka Intermediary Encapsulatio...Show more
The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by carriage return (CR, ASCII 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII 0x0), aka Intermediary Encapsulation Attacks.Show less
2Debian
Ruby Lang
2Debian Linux
Ruby
Jun 17, 2026
Nov 26, 2019
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows HTTP Response Splitting. If a program using WEBrick inserts untrusted input into the response header, an attacker can exploit it to insert a newline...Show more
Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows HTTP Response Splitting. If a program using WEBrick inserts untrusted input into the response header, an attacker can exploit it to insert a newline character to split a header, and inject malicious content to deceive clients. NOTE: this issue exists because of an incomplete fix for CVE-2017-17742, which addressed the CRLF vector, but did not address an isolated CR or an isolated LF.Show less
1Ruby Lang
1Ruby
Nov 21, 2024
Nov 26, 2019
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
Various methods in WEBrick::HTTPRequest in Ruby 1.9.2 and 1.8.7 and earlier do not validate the X-Forwarded-For, X-Forwarded-Host and X-Forwarded-Server headers in requests, which might allow remote attackers to inject a...Show more
Various methods in WEBrick::HTTPRequest in Ruby 1.9.2 and 1.8.7 and earlier do not validate the X-Forwarded-For, X-Forwarded-Host and X-Forwarded-Server headers in requests, which might allow remote attackers to inject arbitrary text into log files or bypass intended address parsing via a crafted header.Show less
1Ibm
1Smartcloud Analytics Log Analysis
Jun 17, 2026
Nov 22, 2019
N/A· v4
4.6 MEDIUM· v3
4.9 MEDIUM· v2
IBM SmartCloud Analytics 1.3.1 through 1.3.5 is vulnerable to possible host header injection attack that could lead to HTTP cache poisoning or firewall bypass. IBM X-Force ID: 159187.
1Redhat
2Edeploy
Jboss Enterprise Web Server
Nov 21, 2024
Nov 21, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
eDeploy through at least 2014-10-14 has remote code execution due to eval() of untrusted data
2Debian
Freedesktop
2Debian Linux
Poppler
Nov 21, 2024
Nov 13, 2019
N/A· v4
7.8 HIGH· v3
9.3 HIGH· v2
poppler before 0.16.3 has malformed commands that may cause corruption of the internal stack.
1Magento
1Magento
Jun 17, 2026
Nov 6, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
A remote code execution vulnerability exists in Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3 or 2.3.2-p1. Dependency injection through Symphony framework allows service identifiers to be derived from user cont...Show more
A remote code execution vulnerability exists in Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3 or 2.3.2-p1. Dependency injection through Symphony framework allows service identifiers to be derived from user controlled data, which can lead to remote code execution.Show less
1Typo3
1Typo3
Nov 21, 2024
Nov 4, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
TYPO3 before 4.1.14, 4.2.x before 4.2.13, 4.3.x before 4.3.4 and 4.4.x before 4.4.1 allows Header Injection in the secure download feature jumpurl.
1Twiki
1Twiki
Nov 21, 2024
Nov 1, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
TWiki allows arbitrary shell command execution via the Include function
1Clickhouse
1Clickhouse
Jun 17, 2026
Oct 31, 2019
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
ClickHouse before 19.13.5.44 allows HTTP header injection via the url table function.
1Cisco
1Telepresence Video Communication Server
Nov 21, 2024
Oct 29, 2019
N/A· v4
7.2 HIGH· v3
9.0 HIGH· v2
Cisco Video Communications Server (VCS) before X7.0.3 contains a command injection vulnerability which allows remote, authenticated attackers to execute arbitrary commands.
1Ibm
1Cloud Orchestrator
Jun 17, 2026
Oct 25, 2019
N/A· v4
5.4 MEDIUM· v3
3.5 LOW· v2
IBM Cloud Orchestrator 2.4 through 2.4.0.5 and 2.5 through 2.5.0.9 is vulnerable to HTTP Response Splitting caused by improper caching of content. This would allow the attacker to perform further attacks, such as Web Cac...Show more
IBM Cloud Orchestrator 2.4 through 2.4.0.5 and 2.5 through 2.5.0.9 is vulnerable to HTTP Response Splitting caused by improper caching of content. This would allow the attacker to perform further attacks, such as Web Cache poisoning, cross-site scripting and possibly obtain sensitive information. IBM X-Force ID: 163682.Show less
1Ibm
1Cloud Orchestrator
Jun 17, 2026
Oct 25, 2019
N/A· v4
5.4 MEDIUM· v3
3.5 LOW· v2
IBM Cloud Orchestrator 2.4 through 2.4.0.5 and 2.5 through 2.5.0.9 is vulnerable to HTTP response splitting attacks, caused by improper validation of user-supplied input. A remote attacker could exploit this vulnerabilit...Show more
IBM Cloud Orchestrator 2.4 through 2.4.0.5 and 2.5 through 2.5.0.9 is vulnerable to HTTP response splitting attacks, caused by improper validation of user-supplied input. A remote attacker could exploit this vulnerability to inject arbitrary HTTP headers and cause the server to return a split response, once the URL is clicked. This would allow the attacker to perform further attacks, such as Web cache poisoning or cross-site scripting, and possibly obtain sensitive information. IBM X-Force ID: 162236.Show less
1Python
1Python
Oct 14, 2026
Oct 23, 2019
N/A· v4
6.1 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in urllib2 in Python 2.x through 2.7.17 and urllib in Python 3.x through 3.8.0. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib...Show more
An issue was discovered in urllib2 in Python 2.x through 2.7.17 and urllib in Python 3.x through 3.8.0. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the host component of a URL) followed by an HTTP header. This is similar to the CVE-2019-9740 query string issue and the CVE-2019-9947 path string issue. (This is not exploitable when glibc has CVE-2016-10739 fixed.). This is fixed in: v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1; v3.6.11, v3.6.11rc1, v3.6.12; v3.7.8, v3.7.8rc1, v3.7.9; v3.8.3, v3.8.3rc1, v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1.Show less
2Cloudfoundry
Pivotal Software
2Cf Deployment
Cloud Foundry Uaa
Jun 17, 2026
Oct 23, 2019
N/A· v4
4.3 MEDIUM· v3
4.0 MEDIUM· v2
Cloud Foundry UAA, versions prior to v74.3.0, contains an endpoint that is vulnerable to SCIM injection attack. A remote authenticated malicious user with scim.invite scope can craft a request with malicious content whic...Show more
Cloud Foundry UAA, versions prior to v74.3.0, contains an endpoint that is vulnerable to SCIM injection attack. A remote authenticated malicious user with scim.invite scope can craft a request with malicious content which can leak information about users of the UAA.Show less
1Ratpack Project
1Ratpack
Jun 17, 2026
Oct 18, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An issue was discovered in Ratpack before 1.7.5. Due to a misuse of the Netty library class DefaultHttpHeaders, there is no validation that headers lack HTTP control characters. Thus, if untrusted data is used to constru...Show more
An issue was discovered in Ratpack before 1.7.5. Due to a misuse of the Netty library class DefaultHttpHeaders, there is no validation that headers lack HTTP control characters. Thus, if untrusted data is used to construct HTTP headers with Ratpack, HTTP Response Splitting can occur.Show less
1Iterm2
1Iterm2
Jun 17, 2026
Oct 9, 2019
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
A vulnerability exists in the way that iTerm2 integrates with tmux's control mode, which may allow an attacker to execute arbitrary commands by providing malicious output to the terminal. This affects versions of iTerm2...Show more
A vulnerability exists in the way that iTerm2 integrates with tmux's control mode, which may allow an attacker to execute arbitrary commands by providing malicious output to the terminal. This affects versions of iTerm2 up to and including 3.3.5. This vulnerability may allow an attacker to execute arbitrary commands on their victim's computer by providing malicious output to the terminal. It could be exploited using command-line utilities that print attacker-controlled content.Show less
1Ibm
1Spectrum Scale
Jun 17, 2026
Oct 9, 2019
N/A· v4
7.8 HIGH· v3
7.2 HIGH· v2
A security vulnerability has been identified in all levels of IBM Spectrum Scale V5.0.0.0 through V5.0.3.2 and IBM Spectrum Scale V4.2.0.0 through V4.2.3.17 that could allow a local attacker to obtain root privilege by i...Show more
A security vulnerability has been identified in all levels of IBM Spectrum Scale V5.0.0.0 through V5.0.3.2 and IBM Spectrum Scale V4.2.0.0 through V4.2.3.17 that could allow a local attacker to obtain root privilege by injecting parameters into setuid files.Show less
1Cisco
1Unified Contact Center Express
Jun 17, 2026
Oct 2, 2019
N/A· v4
6.1 MEDIUM· v3
4.3 MEDIUM· v2
A vulnerability in Cisco Unified Contact Center Express (UCCX) Software could allow an unauthenticated, remote attacker to conduct an HTTP response splitting attack. The vulnerability is due to insufficient input validat...Show more
A vulnerability in Cisco Unified Contact Center Express (UCCX) Software could allow an unauthenticated, remote attacker to conduct an HTTP response splitting attack. The vulnerability is due to insufficient input validation of some parameters that are passed to the web server of the affected system. An attacker could exploit this vulnerability by convincing a user to follow a malicious link or by intercepting a user request on an affected device. A successful exploit could allow the attacker to perform cross-site scripting attacks, web cache poisoning, access sensitive browser-based information, and similar exploits.Show less
2Opensuse
Putty
2Leap
Putty
Jun 17, 2026
Oct 1, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
PuTTY before 0.73 mishandles the "bracketed paste mode" protection mechanism, which may allow a session to be affected by malicious clipboard content.