CWE-113Variant

Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')

Incomplete in the CWE catalog · 92 CVEs mapped

92
CVEs mapped
5.6
Median CVSS
What it is

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.

Recent examples
5.4cvss
CVE-2026-2811

CVE-2026-2811 - MEDIUM Severity Vulnerability

The Ajaxify Comments WordPress plugin before 3.2 is vulnerable to HTTP Header Injection due to insufficient input sanitization and output escaping on user-supplied data. This makes it possible for unauthenticated attackers to inject arbitrary HTTP headers.

MEDIUMno explanation yet
0%
epss
none
CVE-2026-77341

CVE-2026-77341 - UNKNOWN Severity Vulnerability

cpp-httplib is a C++ header-only HTTP/HTTPS library. In version 0.49.0, the chunked-response trailer output path writes trailer header names and values directly to the socket without validating them, allowing CRLF sequences in a trailer field to inject additional headers or split the HTTP response. Unlike every other header-writing path in the library, the trailer-writing code applies none of the field-name and field-value checks that reject carriage return and line feed, so an application that places attacker-influenced data into a chunked response trailer emits attacker-controlled CRLF onto the wire. This enables HTTP response splitting, letting an attacker forge response headers or inject a second response. This issue is fixed in version 0.50.0.

no explanation yet
0%
epss
8.8cvss
CVE-2026-75419

CVE-2026-75419 - HIGH Severity Vulnerability

go-wind-cms (GoWind) before 1.0.0 has a missing authorization vulnerability. The NewAuthorizer() function in app/admin/service/internal/data/data.go and app/app/service/internal/data/data.go returns a no-op authorization engine (noop.State{}), so the authz middleware always allows requests. Any authenticated user (regardless of role or tenant) can invoke administrative APIs such as deleting users, resetting passwords, and creating tenants.

HIGHno explanation yet
0%
epss
The record
Technical detail
CWE ID
CWE-113
Abstraction
Variant
Structure
Simple
Status
Incomplete
References (2)