---
cve: "CVE-2026-23918"
severity: "HIGH"
cvss: 8.8
epss: "49.7%"
vendor: "Apache Software Foundation"
kev: false
exploited: false
published: "2026-05-04 15:16:03"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-19T20:36:38+02:00"
---

# CVE-2026-23918

> 8.8 HIGH

## Beschreibung

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-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Exploit-Evidenz

- [EDB-52577 — Apache HTTP Server 2.4.66 - 'mod_http2' Double-Free Denial of Service](https://www.exploit-db.com/exploits/52577)

## Referenzen

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

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-23918) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_