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Vulnerability · Published Oct 19, 2026 · Assigned by VulDB

CVE-2026-112094michaelrsweet mxml mxml-file.c mxml_load_data use after free

Medium 5.5

In plain English

A medium-severity use-after-free in mxml from michaelrsweet. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 92.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:14mxml4.0.6-3DEBIAN-CVE-2026-112094
Ubuntu:22.04:LTSmxmlno fix listedUBUNTU-CVE-2026-112094
Ubuntu:24.04:LTSmxmlno fix listedUBUNTU-CVE-2026-112094
Ubuntu:26.04:LTSmxmlno fix listedUBUNTU-CVE-2026-112094
Ubuntu:26.10mxmlno fix listedUBUNTU-CVE-2026-112094

Affected products (as reported)

VendorProductVersions
michaelrsweet mxml 4.0.54.0.6

Weakness: CWE-416, CWE-119 · Vector: 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

References