Important: Red Hat Security Advisory: Red Hat build of Quarkus 3.27.4.SP3 security update

🗓️ 29 Jul 2026 14:54:22Reported by RedHatType

redhat🔗 access.redhat.com👁 18 Views

Red Hat Quarkus update 3.27.4.SP3 fixes multiple CVEs across REST, Vert.x, and Netty components.

Reporter	Title	Published	Views	Family All 1000
IBM Security Bulletins	Security Bulletin: Multiple security vulnerabilities in IBM Business Automation Manager Open Editions	20 Aug 202615:19	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in netty-codec-http-4.1.135.Final.jar	15 Sep 202620:38	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Informix Wire Listener is affected by a vulnerability in the third-party Netty library (CVE-2026-59900).	26 Aug 202607:18	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image	6 Aug 202607:35	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Enterprise Build of Quarkus is affected by multiple vulnerabilities	30 Jul 202606:03	–	ibm
IBM Security Bulletins	Security Bulletin: IBM SPSS Analytic Server is affected by multiple vulnerabilities in Netty	19 Aug 202618:05	–	ibm
IBM Security Bulletins	Security Bulletin: IBM DevOps Deploy / IBM UrbanCode Deploy (UCD) is susceptible to multiple Netty vulnerabilities (CVE-2026-59899, CVE-2026-59921)	3 Sep 202617:48	–	ibm
IBM Security Bulletins	Security Bulletin: There are vulnerabilities in IBM Maximo Manage application in IBM Maximo Application Suite	28 Aug 202606:40	–	ibm
IBM Security Bulletins	Security Bulletin: Multiple vulnerabilities in IBM watsonx Orchestrate Developer Edition	29 Sep 202614:40	–	ibm
IBM Security Bulletins	Security Bulletin: IBM® Db2® federated server is affected by multiple vulnerabilities in Netty open source libraries.	10 Sep 202621:09	–	ibm

Source	Link
access	www.access.redhat.com/jbossnetwork/restricted/listSoftware.html
access	www.access.redhat.com/products/quarkus/
access	www.access.redhat.com/security/updates/classification/
docs	www.docs.redhat.com/en/documentation/red_hat_build_of_quarkus/3.27
issues	www.issues.redhat.com/browse/QUARKUS-8544

25 Sep 2026 15:32Current

7.1High risk

Vulners AI Score7.1

CVSS 3.17.5

CVSS 48.7

EPSS0.00665

SSVC

red hat quarkus security update vulnerability fixes resteasy reactive client vertx core vertx web client netty codec http netty codec http2 proxy protocol v2