CVE-2026-23918

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-23918
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.

8.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://httpd.apache.org/security/vulnerabilities_24.html Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/05/04/19 Mailing List Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:http_server:2.4.66:*:*:*:*:*:*:*
History

04 May 2026, 20:24

Type Values Removed Values Added
First Time Apache http Server
Apache
CPE cpe:2.3:a:apache:http_server:2.4.66:*:*:*:*:*:*:*
References () https://httpd.apache.org/security/vulnerabilities_24.html - () https://httpd.apache.org/security/vulnerabilities_24.html - Vendor Advisory
References () http://www.openwall.com/lists/oss-security/2026/05/04/19 - () http://www.openwall.com/lists/oss-security/2026/05/04/19 - Mailing List, Third Party Advisory

04 May 2026, 18:16

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2026/05/04/19 -

04 May 2026, 16:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 8.8

04 May 2026, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-05-04 15:16

Updated : 2026-05-04 20:24

NVD link : CVE-2026-23918

Mitre link : CVE-2026-23918

CVE.ORG link : CVE-2026-23918

JSON object : View

Products Affected

apache

  • http_server
CWE
CWE-415

Double Free