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CRLF Injection

🗓️ 07 May 2026 00:11:40Reported by Snyk Security DatabaseType 
snyk
 snyk🔗 security.snyk.io👁 31 Views

CRLF Injection in Netty HttpProxyHandler when outbound headers are user-controlled and not sanitized.

Related
Refs
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IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in IBM Security QRadar EDR Software
11 Feb 202616:52
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IBM Security Bulletins		Security Bulletin: IBM Event Processing is vulnerable to a CRLF injection vulnerability in Netty (CVE-2025-67735)
4 Jun 202607:06
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IBM Security Bulletins		Security Bulletin: Vulnerability in netty affects IBM Netezza Appliance
13 Aug 202606:43
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IBM Security Bulletins		Security Bulletin: Vulnerabilities in netty-codec-4.1.124.Final.jar, netty-codec-http-4.1.108.Final.jar, netty-codec-http2-4.1.124.Final.jar affecting MongoDB Enterprised Advanced (CVE-2025-58056, CVE-2025-58057, CVE-2025-67735)
24 Feb 202619:17
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IBM Security Bulletins		Security Bulletin: Rational Test Automation Server is vulnerable to request smuggling using CRLF injection due to netty-codec-http (CVE-2025-67735)
22 Apr 202613:57
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IBM Security Bulletins		Security Bulletin: tCRLF Injection Vulnerability in Netty HttpRequestEncoder Leading to Request Smuggling, affects watsonx.data
7 Apr 202610:58
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IBM Security Bulletins		Security Bulletin: Security Vulnerability in Netty affects IBM Sterling B2B Integrator and IBM Sterling File Gateway (CVE-2025-67735)
21 Jul 202618:13
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IBM Security Bulletins		Security Bulletin: IBM Enterprise Build of Quarkus is affected by multiple vulnerabilities
5 Feb 202615:27
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IBM Security Bulletins		Security Bulletin: There are multiple vulnerabilities in IBM DB2 bundled with IBM Application Performance Management products.
21 May 202614:00
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IBM Security Bulletins		Security Bulletin: Multiple Vulnerabilities affect IBM Decision Optimization for Cloud Pak for Data.
19 Jun 202608:43
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10 Jun 2026 11:45Current
6.9Medium risk
Vulners AI Score6.9
CVSS 3.17.5
CVSS 46.3
EPSS0.01065
SSVC
CRLF InjectionHttpProxyHandlerOutbound HeadersHeader SanitizationNetty
31