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Public proof of conceptFix available

CVE-2026-112094

michaelrsweet mxml mxml-file.c mxml_load_data use after free

A public proof of concept exists; no exploitation attested.

  • Published2026-10-19
  • WeaknessCWE-119 · CWE-416

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-10-1908:17CVE publishedNVD

Versions per branch

Products declared by the CNA1 product

As VulDB, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • michaelrsweet mxml
    Affected
    • = 4.0.5no fix stated
    • = 4.0.6no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-10-19

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • mxmlUbuntu:26.10all versions · no fixed version listed
  • mxmlUbuntu:26.04:LTSall versions · no fixed version listed
  • mxmlUbuntu:24.04:LTSall versions · no fixed version listed
  • mxmlUbuntu:22.04:LTSall versions · no fixed version listed
  • mxmlUbuntu:20.04:LTSall versions · no fixed version listed
  • mxmlUbuntu:18.04:LTSall versions · no fixed version listed
  • mxmlUbuntu:16.04:LTSall versions · no fixed version listed
  • mxmlDebian:14all versions · fixed in 4.0.6-3

Vendor advisories

  • CVE-2026-112094 Red Hat Product Security

    mxml: mxml: memory corruption via use-after-free in mxml_load_data

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionpoc2026-10-19
  • CNACVSS 4.02known since 2026-10-23
  • CNACVSS 3.15.5known since 2026-10-23
  • CNACVSS 2.06.5known since 2026-10-23
  • CNAweakness (CWE)CWE-119, CWE-416known since 2026-10-23
  • FIRST EPSSEPSS score0.2 %2026-11-08
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
CVSS 4.0 vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2026-10-19
Last Modified
2026-10-19
NVD status
Deferred
GitHub Advisory
GHSA-2m37-39hv-427w

Frequently asked questions

What is 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.

Is CVE-2026-112094 actively exploited?

A proof-of-concept exploit exists for CVE-2026-112094, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-112094?

CVE-2026-112094 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L.

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