Critical Apache HTTP Server vulnerability can allow remote code execution (CVE-2026-119618)
Critical Apache HTTP Server vulnerability CVE-2026-119618 allows remote code execution.
A critical vulnerability, CVE-2026-119618, has been discovered in Apache HTTP Server versions 2.4.55 through 2.4.70, specifically within the mod_http2 module. This flaw allows unauthenticated remote attackers to execute arbitrary code on the server. While there are no current reports of exploitation in the wild, users are advised to upgrade to version 2.4.71 or later, or disable HTTP/2 if patching is not immediately possible.
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The lesson from this incident
Full lessonA critical remote code execution vulnerability (CVE-2026-119618) in Apache HTTP Server's mod_http2 module exposes versions 2.4.55 through 2.4.70 to unauthenticated attackers who can execute arbitrary code without any credentials. This represents one of the most severe vulnerability classes possible, as no authentication barrier exists to slow an attacker down. The fix is available in version 2.4.71, meaning organizations running unpatched instances are fully exposed until they act. The window between public disclosure and active exploitation is often measured in hours for high-profile vulnerabilities like this, making rapid response essential. Organizations without a mature patch management process or accurate software inventory will struggle to respond quickly enough.
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Indicators of Compromise
Extracted by AI from the linked source. Not reviewed by an editor. How this works
- cve — CVE-2026-119618