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TI-2026-76283 Aliases CVE-2026-112094GHSA-2m37-39hv-427w

Use after free in michaelrsweet mxml mxml_load_data

Priority MEDIUM 56CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

michaelrsweet mxml versions 4.0.5 and 4.0.6 are affected. A flaw in the mxml_load_data function in mxml-file.c uses memory after it has been freed (CWE-416). A remote attacker with low privileges and some user interaction can trigger it. A public exploit has been disclosed and is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0018 7th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
michaelrsweetmxml4.0.5; 4.0.6—No fix listedCNA
  • mxml Vendormichaelrsweet Affected 4.0.5; 4.0.6 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:michaelrsweet:mxml:*:*:*:*:*:*:*:*——michaelrsweet
  • cpe:2.3:a:michaelrsweet:mxml:*:*:*:*:*:*:*:* Versions — — ·michaelrsweet

Remediation

The sources list no fixed version for mxml.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-19 Threatist record created from CVE-2026-112094
  2. 2026-10-19 Alias added: GHSA-2m37-39hv-427w
  3. 2026-10-19 CISA SSVC decision points changed
  4. 2026-10-19 Priority changed: LOW → MEDIUM
  5. 2026-10-21 Affected versions changed · Red Hat
  6. 2026-10-21 CVSS score added · Red Hat

References

Exploit 1

Patch 1

Other 2

  • TI-2026-74098 Off-by-one stack out-of-bounds write in Mini-XML mxml_strtod() CVSS 4.0LOW 2.0
  • TI-2026-53919 PDFio < 1.6.5 Dangling Pointer via Dictionary String-Formatting CVSS 4.0HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences