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netty-codec-http2: Netty: Denial of Service due to HTTP/2 max header size handling

🗓️ 04 Aug 2026 13:59:30Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 7 Views

Netty header size handling flaw in Hypertext Transfer Protocol version two enables denial of service via header list

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ibm
IBM Security Bulletins		Security Bulletin:Vulnerability in Netty affects IBM Netezza Appliance
12 Aug 202608:51
–ibm
ibm
IBM Security Bulletins		Security Bulletin: There is a vulnerability in netty-codec-http2-4.1.133.Final.jar used by IBM Maximo Manage application in IBM Maximo Application Suite (CVE-2026-50560)
3 Aug 202608:15
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM SPSS Analytic Server is affected by multiple vulnerabilities in Netty
25 Jun 202617:40
–ibm
ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in third-party Netty libraries affect the IBM Informix Wire Listener.
17 Aug 202608:03
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM® Db2® federated server is affected by multiple vulnerabilities in Netty open source libraries.
20 Aug 202615:38
–ibm
ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in IBM watsonx Orchestrate Developer Edition
19 Aug 202616:26
–ibm
cgr
Chainguard		CVE-2026-50560 vulnerabilities
16 Jun 202614:16
–cgr
circl
Circl		CVE-2026-50560
15 Jun 202622:11
–circl
cve
CVE		CVE-2026-50560
12 Jun 202614:59
–cve
cvelist
Cvelist		CVE-2026-50560 Netty susceptible to HTTP/2 Reset Attack with different on-the-wire signature
12 Jun 202614:59
–cvelist
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21 Aug 2026 20:46Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.15.3
CVSS 46.9
EPSS0.00302
SSVC
CWE-770
nettyheader sizemaximum header listprotocol version two
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