---
id: CVE-2026-114459
title: 'Mod_qos: out-of-bounds reads in response-body substring matching'
summary: >-
  A flaw was found in mod_qos. When inspecting HTTP response bodies, improper
  boundary checking can cause the module to read memory outside allocated buffer
  boundaries. An unauthenticated remote attacker can exploit this vulnerability
  by t…
severity: low
cvss: 3.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'
cvssSource: cna
cwe:
  - CWE-125
vendor: pbuchbinder
product: mod_qos
affected:
  - mod_qos 11.74
  - mod_qos 11.76
  - mod_qos 11.79
published: '2026-10-22'
updated: '2026-10-22'
sourceUpdated: '2026-10-22T06:37:06.357Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-114459'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-114459'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2558397'
    label: RHBZ#2558397
tags:
  - cve.org
ingestedAt: '2026-10-22T07:32:31.146Z'
---

## Overview

A flaw was found in mod_qos. When inspecting HTTP response bodies, improper boundary checking can cause the module to read memory outside allocated buffer boundaries. An unauthenticated remote attacker can exploit this vulnerability by triggering specifically crafted server responses, causing an Apache worker process to crash and resulting in a Denial of Service (DoS).

## Affected

- `mod_qos 11.74`
- `mod_qos 11.76`
- `mod_qos 11.79`

## Remediation

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