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CVE-2026-23918

Apache Http Server•HIGH · CVSS 8.8•No exploitation reported

What is 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.

CVSS8.8 NVD 3.1

SeverityHIGH

ExploitationNo exploitation reported

EPSS50% · P99

Triage statusNo Known Exploit

ActionPatch within 48 hours

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWECWE-415, CWE-1341

NVD published2026-05-04

NVD last modified2026-07-15

Timeline

2026-05-04Published to the U.S. National Vulnerability Database (NVD)
2026-05-06First covered in a defend.network daily briefing
2026-07-15NVD record last updated

Affected product

Apache Http Server

References

Referenced in our briefings & reports

Apache HTTP/2 & MetInfo exploited; DAEMON Tools supply-chain hit (2026-05-06)

Related vulnerabilities

CVE-2026-34486 – Apache Tomcat (same vendor)
CVE-2026-34197 – Apache ActiveMQ (same vendor)
CVE-2016-3081 – Apache Struts (same vendor)
CVE-2026-33824 – Microsoft Internet Key Exchange (IKE) Service Extensions (same weakness: CWE-415)

Apache: 41 known exploited vulnerabilities (CISA KEV) →

Browse all tracked CVEs in the defend.network CVE database →

🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.