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TI-2026-44114 Aliases CVE-2026-61570GHSA-5vvx-3h34-f3gj

MPXJ: XXE Vulnerability in MerlinReader

Priority LOW 39CWE-611Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-611 and the CVSS impact.

Summary

MPXJ is an open source library to read and write project plans from a variety of file formats and databases. From 5.5.5 until 16.4.1, MerlinReader creates a DocumentBuilder with default settings while parsing XML from the ZTIMEINTERVALS column of a Merlin project SQLite database, leaving doctype declarations and external entities enabled. A crafted database can cause the parser to read an arbitrary local file, although MPXJ's subsequent handling of the parsed XML makes disclosure of the file contents unlikely. This issue is fixed in version 16.4.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00474 41st percentileScored 2026-11-07
Fix Fixed mpxj (joniles): 16.4.1net.sf.mpxj:mpxj (Maven): 16.4.1+6 more products

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
jonilesmpxj5.5.5 to before 16.4.116.4.1Patch availableCNA
—net.sf.mpxj:mpxj (Maven)5.5.5 to before 16.4.116.4.1Patch availableGHSA-5vvx-3h34-f3gj
—mpxj (RubyGems)5.5.5 to before 16.4.116.4.1Patch availableGHSA-5vvx-3h34-f3gj
—MPXJ.Net (NuGet)5.5.5 to before 16.4.116.4.1Patch availableGHSA-5vvx-3h34-f3gj
—net.sf.mpxj (NuGet)5.5.5 to before 16.4.116.4.1Patch availableGHSA-5vvx-3h34-f3gj
—net.sf.mpxj-for-csharp (NuGet)5.5.5 to before 16.4.116.4.1Patch availableGHSA-5vvx-3h34-f3gj
—net.sf.mpxj-for-vb (NuGet)5.5.5 to before 16.4.116.4.1Patch availableGHSA-5vvx-3h34-f3gj
—mpxj (PyPI)5.5.5 to before 16.4.116.4.1Patch availableGHSA-5vvx-3h34-f3gj
  • mpxj Vendorjoniles Affected 5.5.5 to before 16.4.1 Fixed in 16.4.1 Patch available CNA
  • net.sf.mpxj:mpxj (Maven) Vendor— Affected 5.5.5 to before 16.4.1 Fixed in 16.4.1 Patch available GHSA-5vvx-3h34-f3gj
  • mpxj (RubyGems) Vendor— Affected 5.5.5 to before 16.4.1 Fixed in 16.4.1 Patch available GHSA-5vvx-3h34-f3gj
  • MPXJ.Net (NuGet) Vendor— Affected 5.5.5 to before 16.4.1 Fixed in 16.4.1 Patch available GHSA-5vvx-3h34-f3gj
  • net.sf.mpxj (NuGet) Vendor— Affected 5.5.5 to before 16.4.1 Fixed in 16.4.1 Patch available GHSA-5vvx-3h34-f3gj
  • net.sf.mpxj-for-csharp (NuGet) Vendor— Affected 5.5.5 to before 16.4.1 Fixed in 16.4.1 Patch available GHSA-5vvx-3h34-f3gj
  • net.sf.mpxj-for-vb (NuGet) Vendor— Affected 5.5.5 to before 16.4.1 Fixed in 16.4.1 Patch available GHSA-5vvx-3h34-f3gj
  • mpxj (PyPI) Vendor— Affected 5.5.5 to before 16.4.1 Fixed in 16.4.1 Patch available GHSA-5vvx-3h34-f3gj

Remediation

  • Fix · CNA mpxj (joniles) Fixed in 16.4.1
  • Fix · GHSA-5vvx-3h34-f3gj net.sf.mpxj:mpxj (Maven) Fixed in 16.4.1 Advisory →
  • Fix · GHSA-5vvx-3h34-f3gj mpxj (RubyGems) Fixed in 16.4.1 Advisory →
  • Fix · GHSA-5vvx-3h34-f3gj MPXJ.Net (NuGet) Fixed in 16.4.1 Advisory →
  • Fix · GHSA-5vvx-3h34-f3gj net.sf.mpxj (NuGet) Fixed in 16.4.1 Advisory →
  • Fix · GHSA-5vvx-3h34-f3gj net.sf.mpxj-for-csharp (NuGet) Fixed in 16.4.1 Advisory →
  • Fix · GHSA-5vvx-3h34-f3gj net.sf.mpxj-for-vb (NuGet) Fixed in 16.4.1 Advisory →
  • Fix · GHSA-5vvx-3h34-f3gj mpxj (PyPI) Fixed in 16.4.1 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-61570
  2. 2026-10-03 Alias added: GHSA-5vvx-3h34-f3gj

References

Other 4

  • TI-2024-33238 MPXJ has a Potential Path Traversal Vulnerability CVSS 3.1MEDIUM 5.3
  • TI-2026-46908 MPXJ: Potential Path Traversal Vulnerability in Primavera P3 PRX and SureTrak STX readers CVSS 3.1MEDIUM 5.3

Sources

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