Buffer overflow in Michaelrsweet Mxml
CVE-2026-112094
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Michaelrsweet Mxml — versions 4.0.5, 4.0.6
Weakness classification (CWE)
References
- github.com/michaelrsweet/mxml/ (product)
- github.com/michaelrsweet/mxml/issues/358 (issue-tracking)
- github.com/user-attachments/files/32701825/poc_mxml_error_handling.tar.gz (exploit)
- github.com/user-attachments/files/32836547/mxml-fix-354-358.patch (patch)
- vuldb.com/cve/CVE-2026-112094 (third-party-advisory)
- vuldb.com/submit/1011796 (third-party-advisory)
- vuldb.com/vuln/421908 (technical-description, vdb-entry)
- vuldb.com/vuln/421908/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-112094?
- CVE-2026-112094 is a medium-severity vulnerability in Michaelrsweet Mxml, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2026-10-19.
- How severe is CVE-2026-112094?
- Medium severity. CVSS v3 base score is 5.5 out of 10.