CVE-2026-23918
HIGHCVSS 8.8/10EPSS 45.81%
Last modified
CVE-2026-23918 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 45.81% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Http Server | 2.4.66 |
References
- https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
- https://www.openwall.com/lists/oss-security/2026/05/04/19Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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.
How severe is CVE-2026-23918?
CVE-2026-23918 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 45.81% probability of exploitation in the next 30 days.
How do I fix CVE-2026-23918?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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- CVE-2026-23916Rejected reason: Not used
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Are you affected by CVE-2026-23918?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST