CVE-2026-23918
Analyzed Analyzed - Analysis Complete
Double Free and Possible RCE in Apache HTTP Server

Publication date: 2026-05-04

Last updated on: 2026-05-04

Assigner: Apache Software Foundation

Description
Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol. This issue affects Apache HTTP Server: 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.
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Meta Information
Published
2026-05-04
Last Modified
2026-05-04
Generated
2026-06-16
AI Q&A
2026-05-05
EPSS Evaluated
2026-06-15
NVD
CVE-2026-23918
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
apache http_server 2.4.66
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-415 The product calls free() twice on the same memory address.
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Executive Summary

This vulnerability is a Double Free and possible Remote Code Execution (RCE) issue in the Apache HTTP Server when using the HTTP/2 protocol. A double free occurs when a program attempts to free the same memory location twice, which can lead to memory corruption and potentially allow an attacker to execute arbitrary code remotely.

Impact Analysis

This vulnerability can have severe impacts including allowing an attacker to execute arbitrary code on the affected server remotely. This can lead to full compromise of the server, data breaches, service disruption, and unauthorized access to sensitive information.

Mitigation Strategies

Users are recommended to upgrade Apache HTTP Server from version 2.4.66 to version 2.4.67, which fixes the double free and possible remote code execution vulnerability.

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