CVE-2026-23918: CWE-415 Double Free in Apache Software Foundation Apache HTTP Server
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.
AI Analysis
Technical Summary
CVE-2026-23918 is a double free vulnerability (CWE-415) in Apache HTTP Server 2.4.66 affecting the HTTP/2 protocol. This vulnerability can potentially allow remote code execution due to improper memory handling. The Apache Software Foundation addressed this issue in version 2.4.67. Red Hat has issued advisories and updates for their Hardened Images RPMs, including httpd packages updated to 2.4.67-0.1.hum1, which resolve this vulnerability. The CVSS v3.1 base score is 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 an attacker with low privileges to execute arbitrary code remotely on the affected server, compromising confidentiality, integrity, and availability. The vulnerability affects Apache HTTP Server 2.4.66 and can lead to complete system compromise if exploited.
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 or later to remediate this vulnerability. Red Hat has released updated RPM packages for their Hardened Images that include this fix. Applying these updates as per vendor instructions will mitigate the risk. Patch status is confirmed by vendor advisories.
CVE-2026-23918: CWE-415 Double Free in Apache Software Foundation Apache HTTP Server
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.
CVSS v3.1
Score 8.8high
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-23918 is a double free vulnerability (CWE-415) in Apache HTTP Server 2.4.66 affecting the HTTP/2 protocol. This vulnerability can potentially allow remote code execution due to improper memory handling. The Apache Software Foundation addressed this issue in version 2.4.67. Red Hat has issued advisories and updates for their Hardened Images RPMs, including httpd packages updated to 2.4.67-0.1.hum1, which resolve this vulnerability. The CVSS v3.1 base score is 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 an attacker with low privileges to execute arbitrary code remotely on the affected server, compromising confidentiality, integrity, and availability. The vulnerability affects Apache HTTP Server 2.4.66 and can lead to complete system compromise if exploited.
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 or later to remediate this vulnerability. Red Hat has released updated RPM packages for their Hardened Images that include this fix. Applying these updates as per vendor instructions will mitigate the risk. Patch status is confirmed by vendor advisories.
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
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-23918","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:13938","vendor":"Red Hat"}]
Threat ID: 69f8b5f1cbff5d86102f700d
Added to database: 05/04/2026, 15:06:25 UTC
Last enriched: 07/15/2026, 08:36:33 UTC
Last updated: 08/03/2026, 19:17:59 UTC
Views: 172
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.