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VulnerabilitiesNov 12, 2026

Apache HTTP Server patches critical HTTP/2 remote code execution flaw

Apache HTTP Server patches critical HTTP/2 remote code execution flaw CVE-2026-119618.

A critical vulnerability (CVE-2026-119618) in Apache HTTP Server's HTTP/2 module allows unauthenticated attackers to achieve remote code execution by corrupting heap memory. The Apache Software Foundation has released a patch, but a significant number of servers remain vulnerable. Wiz estimates 64% of cloud environments have vulnerable resources, with about half publicly exposed.

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The lesson from this incident

Full lesson

A critical heap memory corruption vulnerability in Apache HTTP Server's HTTP/2 module enables unauthenticated remote code execution, one of the most severe risk profiles possible for a web server component. Despite a patch being available from the Apache Software Foundation, an estimated 64% of cloud environments still run vulnerable versions, with roughly half of those directly exposed to the internet. This gap between patch availability and patch deployment is a recurring and preventable failure pattern. The scale of exposure demonstrates that many organizations lack timely, systematic processes for identifying and remediating critical vulnerabilities in internet-facing infrastructure.

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Indicators of Compromise

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  • cve — CVE-2026-119618
  • cve — CVE-2026-106023
  • cve — CVE-2026-109163

Entities

Apache HTTP Server (product)HTTP/2 (technology)Apache Software Foundation (vendor)mod_http2 (product)Wiz (vendor)Google Cloud (vendor)