CVE-2026-23918
Apache HTTP Server: http2: double free and possible RCE on early reset
- Published
- May 4, 2026
- Updated
- Jul 15, 2026
- Assigning CNA
- apache
- Evidence observed
- May 26, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HModerate · next 30 days
- Percentile
- 98.9%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
12- CVE-2026-23918Scanner
CVE-2026-23918 Apache mod_http2 Double-Free Detector
Proof-of-concept exploit for Apache mod_http2 double-free vulnerability (CVE-2026-23918) with recon, exploit, and RCE risk assessment phases.
Proof-of-concept exploit for CVE-2026-23918, a double-free vulnerability in Apache HTTP Server, demonstrating remote crash via crafted requests.
Responsible use
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