# CVE-2026-23918

## Summary

- **CVE ID:** CVE-2026-23918
- **Severity:** HIGH
- **CVSS Score:** 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-415
- **Published:** May 4, 2026
- **Last Modified:** Jul 15, 2026

## 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.

## Affected Products

- Apache Software Foundation — Apache HTTP Server (2.4.66)

## References

- [CNA](https://httpd.apache.org/security/vulnerabilities_24.html)
- [CVE](http://www.openwall.com/lists/oss-security/2026/05/04/19)
- [redhat-SADP](https://access.redhat.com/security/cve/CVE-2026-23918)
- [redhat-SADP](https://bugzilla.redhat.com/show_bug.cgi?id=2465304)
- [redhat-SADP](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23918.json)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:13938)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 49.73%
- **EPSS Percentile:** 98.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._