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EPSS 6.8%top 6.9%

CVE-2026-23918: CWE-415 Double Free in Apache Software Foundation Apache HTTP Server

0
High
VulnerabilityCVE-2026-23918cvecve-2026-23918cwe-415
Published: Mon May 04 2026 (05/04/2026, 14:44:28 UTC)
Source: CVE Database V5
Vendor/Project: Apache Software Foundation
Product: Apache HTTP Server

Description

CVE-2026-23918 is a high-severity vulnerability in Apache HTTP Server version 2.4.66 involving a double free condition in the HTTP/2 protocol implementation. This flaw can lead to remote code execution if exploited. The Apache Software Foundation has fixed this issue in version 2.4.67. Users should upgrade to 2.4.67 to mitigate the risk.

CVSS v3.1

Score 8.8high

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected software

Affected versions
=2.4.66

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 06/16/2026, 09:26:24 UTC

Technical Analysis

CVE-2026-23918 is a double free vulnerability (CWE-415) in Apache HTTP Server 2.4.66 affecting the HTTP/2 protocol implementation. This memory management flaw allows an attacker to potentially execute arbitrary code remotely. The issue is resolved in Apache HTTP Server version 2.4.67, which addresses the double free condition. The vulnerability has a CVSS 3.1 base score of 8.8, indicating high severity with network attack vector, low attack complexity, and no user interaction required.

Potential Impact

Successful exploitation of this vulnerability could allow remote attackers to execute arbitrary code on affected systems running Apache HTTP Server 2.4.66. This compromises confidentiality, integrity, and availability of the server.

Mitigation Recommendations

A fix is available in Apache HTTP Server version 2.4.67. Users should upgrade from version 2.4.66 to 2.4.67 to remediate this vulnerability. No other mitigation or workaround is indicated in the provided data.

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Technical Details

Data Version
5.2
Assigner Short Name
apache
Date Reserved
2026-01-19T13:00:21.720Z
Cvss Version
null
State
PUBLISHED
Remediation Level
null

Threat ID: 69f8b5f1cbff5d86102f700d

Added to database: 5/4/2026, 3:06:25 PM

Last enriched: 6/16/2026, 9:26:24 AM

Last updated: 6/19/2026, 3:47:38 PM

Views: 140

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