Vulnerabilities
Projects
Vulnerability Disclosure
About Us
Contact Us
Mend.io Vulnerability Database
What is a WS vulnerability ID?
What is an MSC vulnerability ID?
We found results for “”
CVE-2025-67735
Good to know:
Date: December 15, 2025
Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.129.Final and 4.2.8.Final, the "io.netty.handler.codec.http.HttpRequestEncoder" has a CRLF injection with the request URI when constructing a request. This leads to request smuggling when "HttpRequestEncoder" is used without proper sanitization of the URI. Any application / framework using "HttpRequestEncoder" can be subject to be abused to perform request smuggling using CRLF injection. Versions 4.1.129.Final and 4.2.8.Final fix the issue.
Severity Score
Related Resources (5)
Severity Score
Weakness Type (CWE)
Improper Neutralization of CRLF Sequences ('CRLF Injection')
CWE-93Top Fix
Upgrade Version
Upgrade to version io.netty:netty-codec-http:4.2.8.Final;io.netty:netty-codec-http:4.1.129.Final;https://github.com/netty/netty.git - netty-4.1.129.Final;https://github.com/netty/netty.git - netty-4.2.8.Final
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | LOW |
| Integrity (I): | LOW |
| Availability (A): | NONE |