CRLF Injection Affecting netty-javadoc package, versions <4.1.130-150200.4.40.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.29% (21st percentile)

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  • Snyk IDSNYK-SLES157-NETTYJAVADOC-14544085
  • published20 Dec 2025
  • disclosed19 Dec 2025

Introduced: 19 Dec 2025

CVE-2025-67735  (opens in a new tab)
CWE-93  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 netty-javadoc to version 4.1.130-150200.4.40.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream netty-javadoc package and not the netty-javadoc package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1