---
id: CVE-2026-112094
title: michaelrsweet mxml mxml-file.c mxml_load_data use after free
summary: >-
  A security vulnerability has been detected in michaelrsweet mxml 4.0.5/4.0.6.
  This affects the function mxml_load_data of the file mxml-file.c. The
  manipulation leads to use after free. The attack is possible to be carried out
  remotely. …
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'
cvssSource: cna
cwe:
  - CWE-416
  - CWE-119
vendor: michaelrsweet
product: mxml
affected:
  - mxml 4.0.5
  - mxml 4.0.6
published: '2026-10-19'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T08:00:22.009Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-112094'
references:
  - url: 'https://vuldb.com/vuln/421908'
    label: VDB-421908 | michaelrsweet mxml mxml-file.c mxml_load_data use after free
  - url: 'https://vuldb.com/vuln/421908/cti'
    label: 'VDB-421908 | CTI Indicators (IOB, IOC, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-112094'
    label: CVE-2026-112094 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/1011796'
    label: 'Submit #1011796 | mxml v4.0.5, v4.0.6 Use After Free'
  - url: 'https://github.com/michaelrsweet/mxml/issues/358'
  - url: 'https://github.com/user-attachments/files/32836547/mxml-fix-354-358.patch'
  - url: >-
      https://github.com/user-attachments/files/32701825/poc_mxml_error_handling.tar.gz
  - url: 'https://github.com/michaelrsweet/mxml/'
tags:
  - cve.org
ingestedAt: '2026-10-19T08:15:01.882Z'
---

## Overview

A security vulnerability has been detected in michaelrsweet mxml 4.0.5/4.0.6. This affects the function mxml_load_data of the file mxml-file.c. The manipulation leads to use after free. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

## Affected

- `mxml 4.0.5`
- `mxml 4.0.6`

## Remediation

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