CVE-2026-112094 Details
Description
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.
A use-after-free vulnerability has been identified in the MXML library, specifically in versions 4.0.5 and 4.0.6. The issue arises in the `mxml_load_data` function within the `mxml-file.c` source file. This vulnerability allows for heap corruption by double-freeing a node that has already been deleted, which can lead to a segmentation fault and potentially be exploited further, depending on the state of the memory heap.
Users can upgrade to MXML version 4.0.7, which includes a patch for this vulnerability. The patch is also available as a separate file in this repository.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 19, 2026CISA-ADP
Assessed Oct 19, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/michaelrsweet/mxml/ | [email protected] | ProductVendor |
| https://github.com/michaelrsweet/mxml/issues/358 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/user-attachments/files/32701825/poc_mxml_error_handling.tar.gz | [email protected] | Broken LinkExploit |
| https://github.com/user-attachments/files/32836547/mxml-fix-354-358.patch | [email protected] | Broken LinkSource Code |
| https://vuldb.com/cve/CVE-2026-112094 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/1011796 | [email protected] | Permission Required |
| https://vuldb.com/vuln/421908 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/421908/cti | [email protected] | AdvisoryPermission Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| michaelrsweet mxml | 4.0.5 (semver) 4.0.6 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 19, 2026 | CVE Modified | CISA-ADP |
| Oct 19, 2026 | New CVE Received | [email protected] |