---
id: CVE-2026-56449
title: >-
  Out-of-bounds Write vulnerability in Apache HTTP Server's mod_proxy_html with
  crafted HTTP response bodies.




  This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
summary: >-
  Out-of-bounds Write vulnerability in Apache HTTP Server's mod_proxy_html with
  crafted HTTP response bodies.




  This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-787
vendor: Apache Software Foundation
product: Apache HTTP Server
affected:
  - apache_http_server >= 2.4.0 <= 2.4.68
published: '2026-10-01'
updated: '2026-10-01'
sourceUpdated: '2026-10-01T20:30:25.943'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-56449'
references:
  - url: 'https://httpd.apache.org/security/vulnerabilities_24.html'
    label: security@apache.org
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-01T18:33:29.294468Z'
ingestedAt: '2026-10-01T18:55:42.362Z'
---

## Overview

Out-of-bounds Write vulnerability in Apache HTTP Server's mod_proxy_html with crafted HTTP response bodies.



This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.