The Apache Software Foundation has fixed a critical vulnerability, tracked as CVE-2026-119618, in the mod_http2 module of the Apache HTTP Server.
Identified by Anthropic’s OSS Scanner and Google Cloud’s Vulnerability Research teams, the issue involves improper synchronization during concurrent thread execution, which causes a race condition and heap memory corruption. This flaw affects server versions 2.4.55 through 2.4.70 and standalone mod_h2 versions 2.0.8 through 2.0.42 where HTTP/2 functionality is actively enabled, alongside two secondary flaws in mod_md and mod_vhost_alias.
From a health sector security perspective, this vulnerability warrants close attention because open-source web servers commonly host patient portals, telehealth interfaces, and clinical administrative tools. Although HTTP/2 is disabled by default, organizations that enable it to optimize web performance for external-facing applications face potential exposure. An unauthenticated actor exploiting this race condition could execute arbitrary code with web server privileges, potentially compromising the confidentiality of electronic health records or disrupting the availability of essential digital patient services.
While cloud telemetry from Wiz indicates that many environments contain affected server versions, actual risk depends heavily on specific server configurations and public internet exposure. Health sector IT teams should evaluate their web infrastructure footprints promptly to mitigate potential operational disruptions before exploitation attempts materialize.
View the detailed report below.
