CRLF Injection Affecting candlepin package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.29% (21st percentile)

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  • Snyk IDSNYK-RHEL7-CANDLEPIN-14466138
  • published18 Dec 2025
  • disclosed16 Dec 2025

Introduced: 16 Dec 2025

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

How to fix?

There is no fixed version for RHEL:7 candlepin.

NVD Description

Note: Versions mentioned in the description apply only to the upstream candlepin package and not the candlepin package as distributed by RHEL. See How to fix? for RHEL: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