CVE-2025-67735 - Netty has a CRLF Injection vulnerability in io.netty.handler.codec.http.HttpRequestEncoder
CVE ID : CVE-2025-67735
Published : Dec. 16, 2025, 12:19 a.m. | 28 minutes ago
Description : 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: 0.0 | NA
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Published : Dec. 16, 2025, 12:19 a.m. | 28 minutes ago
Description : 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: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...