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nginx: NGINX: Arbitrary code execution or Denial of Service via heap-based buffer overflow with crafted HTTP/2 headers

🗓️ 07 Jul 2026 19:24:41Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 6 Views

A flaw in NGINX allows heap overflow via crafted HTTP/2 headers, causing DoS and code execution.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9aarch64nginx2:1.20.1-28.el9_8.4nginx-2:1.20.1-28.el9_8.4.aarch64.rpm
Red Hat Enterprise Linux9ppc64lenginx2:1.20.1-28.el9_8.4nginx-2:1.20.1-28.el9_8.4.ppc64le.rpm
Red Hat Enterprise Linux9s390xnginx2:1.20.1-28.el9_8.4nginx-2:1.20.1-28.el9_8.4.s390x.rpm
Red Hat Enterprise Linux9x86_64nginx2:1.20.1-28.el9_8.4nginx-2:1.20.1-28.el9_8.4.x86_64.rpm
Red Hat Enterprise Linux9anynginx-all-modules2:1.20.1-28.el9_8.4.noarchnginx-all-modules-2:1.20.1-28.el9_8.4.noarch.noarch.rpm
Red Hat Enterprise Linux9aarch64nginx-core2:1.20.1-28.el9_8.4nginx-core-2:1.20.1-28.el9_8.4.aarch64.rpm
Red Hat Enterprise Linux9ppc64lenginx-core2:1.20.1-28.el9_8.4nginx-core-2:1.20.1-28.el9_8.4.ppc64le.rpm
Red Hat Enterprise Linux9s390xnginx-core2:1.20.1-28.el9_8.4nginx-core-2:1.20.1-28.el9_8.4.s390x.rpm
Red Hat Enterprise Linux9x86_64nginx-core2:1.20.1-28.el9_8.4nginx-core-2:1.20.1-28.el9_8.4.x86_64.rpm
Red Hat Enterprise Linux9aarch64nginx-core-debuginfo2:1.20.1-28.el9_8.4nginx-core-debuginfo-2:1.20.1-28.el9_8.4.aarch64.rpm
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08 Jul 2026 19:27Current
6.3Medium risk
Vulners AI Score6.3
CVSS 3.18.1
CVSS 49.2
EPSS0.03459
SSVC
6