---
cve: "CVE-2026-33857"
severity: "MEDIUM"
cvss: 5.3
epss: "39%"
vendor: "Apache Software Foundation"
kev: false
exploited: false
published: "2026-05-04 14:16:33"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T17:00:44+02:00"
---

# CVE-2026-33857

> 5.3 MEDIUM

## Beschreibung

Out-of-bounds Read vulnerability in mod_proxy_ajp of 

Apache HTTP Server.

This issue affects Apache HTTP Server: through 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:N/UI:N/S:U/C:L/I:N/A:N
```

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

## Patch verfügbar (OSV)

- e4a77ef6051b3fe22eafacbcf54855b178a0bddd (Commit)

## Referenzen

- <https://httpd.apache.org/security/vulnerabilities_24.html>
- <http://www.openwall.com/lists/oss-security/2026/05/04/15>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-33857) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_