EUVD-2026-31683

Hackney has CRLF / header injection via unvalidated domain and path options...

PT-2026-51516

Name of the Vulnerable Software and Affected Versions Hono versions prior to 4.12.12 Description The software fails to validate cookie names within the setCookie, serialize, and serializeSigned functions. When an application uses a user-controlled cookie name, invalid characters such as control...

Astra Linux – Vulnerability in JRuby

Versions of Ruby from 2.4.7, 2.5.x up to 2.5.6, and 2.6.x up to 2.6.4 allow HTTP Response Splitting. If a program using WEBrick inserts untrusted input into the response header, an attacker can exploit this to insert a newline character to split the header, thereby injecting malicious content to...

Astra Linux – Vulnerability in Netty

The Netty project is an event-driven, asynchronous network application framework. Starting from version 4.1.83.Final and before 4.1.86.Final, when calling DefaultHttpHeaders.set with an iterator of values, header value validation was not performed. This allowed malicious header values in the...

Astra Linux – Vulnerability in Apache2

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...

Astra Linux – Vulnerability in Apache2

Splitting of HTTP responses within the core of the Apache HTTP Server allows attackers who can manipulate the Content-Type response headers of applications hosted or proxied by the server to split the HTTP response. This vulnerability was identified as CVE-2023-38709, but the patch included in...

Astra Linux – Vulnerability in Apache2

Splitting HTTP responses across multiple modules in the Apache HTTP Server allows an attacker who can inject malicious response headers into backend applications to carry out an HTTP desynchronization attack. Users are recommended to upgrade to version 2.4.59, which fixes this issue...

Astra Linux – Vulnerability in JRuby

Before Ruby 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, an HTTP Response Splitting attack was possible. An attacker could inject a crafted key and value into an HTTP response for the WEBrick HTTP server...

HTTP Response Splitting

Overview Affected versions of this package are vulnerable to HTTP Response Splitting via MultipartWriter.append or Payload.headers when attacker-controlled input is included in multipart or payload headers. An attacker can inject additional headers or alter the contents of a request by supplying...

GHSA-CQ87-8R7H-962V SwiftNIO: CRLF Injection in outbound HTTP request URI via NIOHTTPRequestHeadersValidator

Programs using swift-nio is vulnerable to HTTP request smuggling and HTTP response splitting attacks, caused by insufficient validation of outbound HTTP/1.1 request and response start line components. This vulnerability affects all swift-nio versions from 2.0.0 to 2.99.0. It is fixed in 2.100.0 a...

SwiftNIO: CRLF Injection in outbound HTTP request URI via NIOHTTPRequestHeadersValidator

Programs using swift-nio is vulnerable to HTTP request smuggling and HTTP response splitting attacks, caused by insufficient validation of outbound HTTP/1.1 request and response start line components. This vulnerability affects all swift-nio versions from 2.0.0 to 2.99.0. It is fixed in 2.100.0 a...

CVE-2026-50630

A CRLF injection vulnerability exists in the OAuth2 AuthorizationUtils class. When constructing the WWW-Authenticate response header, the 'realm' parameter is concatenated without sanitizing Carriage Return CR and Line Feed LF characters. If an attacker can control the realm value, they can injec...

CVE-2026-50630 Apache CXF: OAuth2: HTTP Response Splitting via WWW-Authenticate Realm Injection

A CRLF injection vulnerability exists in the OAuth2 AuthorizationUtils class. When constructing the WWW-Authenticate response header, the 'realm' parameter is concatenated without sanitizing Carriage Return CR and Line Feed LF characters. If an attacker can control the realm value, they can injec...

PT-2026-48923

Programs using swift-nio is vulnerable to HTTP request smuggling and HTTP response splitting attacks, caused by insufficient validation of outbound HTTP/1.1 request and response start line components. This vulnerability affects all swift-nio versions from 2.0.0 to 2.99.0. It is fixed in 2.100.0 a...

SwiftNIO: CRLF Injection in outbound HTTP request URI via NIOHTTPRequestHeadersValidator

Programs using swift-nio is vulnerable to HTTP request smuggling and HTTP response splitting attacks, caused by insufficient validation of outbound HTTP/1.1 request and response start line components. This vulnerability affects all swift-nio versions from 2.0.0 to 2.99.0. It is fixed in 2.100.0 a...

HTTP Response Splitting

Overview Affected versions of this package are vulnerable to HTTP Response Splitting via the host component of a URI when constructing a PSR-7 Uri or Request. An attacker can inject arbitrary HTTP headers by supplying a crafted host value containing ASCII control characters, such as CRLF, which a...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS : Apache HTTP Server vulnerabilities (USN-8338-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8338-1 advisory. It was discovered that Apache HTTP Server incorrectly handled certain response headers. An attacker could possibly us...

K000161670: Apache HTTP Server vulnerability CVE-2026-33523

Security Advisory Description HTTP response splitting vulnerability in multiple Apache HTTP Server modules with untrusted or compromised backend servers. This issue affects Apache HTTP Server: from through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue...

CVE-2026-43966

Improper Neutralization of CRLF Sequences in HTTP Headers 'HTTP Request/Response Splitting' vulnerability in ninenines cowlib allows HTTP response splitting via non-VCHAR bytes in structured-fields string values. cowhttpstructhd:escapestring/2 in cowlib only escapes \ and ", passing all other byt...

DEBIAN-CVE-2026-43966

Improper Neutralization of CRLF Sequences in HTTP Headers 'HTTP Request/Response Splitting' vulnerability in ninenines cowlib allows HTTP response splitting via non-VCHAR bytes in structured-fields string values. cowhttpstructhd:escapestring/2 in cowlib only escapes \ and ", passing all other byt...