CVE-2026-65829
MPXJ: Potential Path Traversal Vulnerability in Primavera P3 PRX and SureTrak STX readers
MPXJ is an open source library to read and write project plans from a variety of file formats and databases. From 7.3.0 until 16.5.0, reading a suitably crafted Primavera P3 PRX or SureTrak STX file can cause MPXJ to write files to arbitrary locations in the filesystem. This issue is fixed in version 16.5.0.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
5.3
MPXJ: Potential Path Traversal Vulnerability in Primavera P3 PRX and SureTrak STX readers
MPXJ is an open source library to read and write project plans from a variety of file formats and databases. From 7.3.0 until 16.5.0, reading a suitably crafted Primavera P3 PRX or SureTrak STX file can cause MPXJ to write files to arbitrary locations in the filesystem. This issue is fixed in version 16.5.0.
- Record
CVE-2026-65829- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
EUVDEUVD-2026-84819
5.3
MPXJ is an open source library to read and write project plans from a variety of file formats and databases. From 7.3.0 until 16.5.0, reading a suitably crafted Primavera P3 PRX or SureTrak STX file can cause MPXJ to write files to arbitrary locations in the filesystem. This issue is fixed in version 16.5.0.
- Record
EUVD-2026-84819- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-7952-gx68-cjqr
5.3
MPXJ: Potential Path Traversal Vulnerability in Primavera P3 PRX and SureTrak STX readers
Impact
When reading a suitably crafted PRX or STX file, MPXJ can be made to write files to arbitrary locations in the file system.
Patches
This issue is addressed in MPXJ version 16.5.0.
Workarounds
Do not read PRX or STX files from untrusted sources.
- Record
GHSA-7952-gx68-cjqr- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
NVD
5.3
MPXJ is an open source library to read and write project plans from a variety of file formats and databases. From 7.3.0 until 16.5.0, reading a suitably crafted Primavera P3 PRX or SureTrak STX file can cause MPXJ to write files to arbitrary locations in the filesystem. This issue is fixed in version 16.5.0.
- Record
CVE-2026-65829- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSV
5.3
MPXJ: Potential Path Traversal Vulnerability in Primavera P3 PRX and SureTrak STX readers
MPXJ is an open source library to read and write project plans from a variety of file formats and databases. From 7.3.0 until 16.5.0, reading a suitably crafted Primavera P3 PRX or SureTrak STX file can cause MPXJ to write files to arbitrary locations in the filesystem. This issue is fixed in version 16.5.0.
- Record
CVE-2026-65829- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSVGHSA-7952-gx68-cjqr
5.3
MPXJ: Potential Path Traversal Vulnerability in Primavera P3 PRX and SureTrak STX readers
Impact
When reading a suitably crafted PRX or STX file, MPXJ can be made to write files to arbitrary locations in the file system.
Patches
This issue is addressed in MPXJ version 16.5.0.
Workarounds
Do not read PRX or STX files from untrusted sources.
- Record
GHSA-7952-gx68-cjqr- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSVPYSEC-2026-4108
5.3
MPXJ: Potential Path Traversal Vulnerability in Primavera P3 PRX and SureTrak STX readers
Impact
When reading a suitably crafted PRX or STX file, MPXJ can be made to write files to arbitrary locations in the file system.
Patches
This issue is addressed in MPXJ version 16.5.0.
Workarounds
Do not read PRX or STX files from untrusted sources.
- Record
PYSEC-2026-4108- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
MPXJ.NetNuGet |
7.3.0 up to 16.5.0 | 16.5.0 |
mpxjRubyGems |
7.3.0 up to 16.5.0 | 16.5.0 |
mpxjPyPI |
7.3.0 up to 16.5.0 | 16.5.0 |
net.sf.mpxjNuGet |
7.3.0 up to 16.5.0 | 16.5.0 |
net.sf.mpxj-for-csharpNuGet |
7.3.0 up to 16.5.0 | 16.5.0 |
net.sf.mpxj-for-vbNuGet |
7.3.0 up to 16.5.0 | 16.5.0 |
net.sf.mpxj:mpxjMaven |
7.3.0 up to 16.5.0 | 16.5.0 |
MPXJ.NetNuGet |
7.3.0 up to 16.5.0, plus listed versions 13.0.013.0.113.0.213.1.013.10.0 Show 39 moreShow less13.11.013.12.013.2.013.2.113.2.213.3.013.3.113.4.013.4.113.4.213.5.013.5.113.6.013.8.013.9.014.0.014.1.014.2.014.3.014.3.114.3.214.3.314.3.414.3.514.4.014.5.014.5.114.5.215.0.015.1.015.2.015.3.015.3.116.0.016.1.016.2.016.3.016.4.016.4.1 |
16.5.0 |
mpxjRubyGems |
7.3.0 up to 16.5.0, plus listed versions 10.0.010.0.110.0.210.0.310.0.4 Show 45 moreShow less10.0.510.1.010.10.010.11.010.12.010.13.010.14.010.14.110.15.010.16.010.16.110.16.210.2.010.3.010.4.010.5.010.6.010.6.110.6.210.7.010.8.010.9.010.9.111.0.011.1.011.2.011.3.011.3.111.3.211.4.011.5.011.5.111.5.211.5.311.5.412.0.012.0.112.0.212.1.012.1.112.1.212.1.312.10.012.10.112.10.2 |
16.5.0 |
mpxjPyPI |
7.3.0 up to 16.5.0, plus listed versions 10.0.010.0.110.0.210.0.310.0.4 Show 45 moreShow less10.0.510.1.010.10.010.11.010.12.010.13.010.14.010.14.110.15.010.16.010.16.110.16.210.2.010.3.010.4.010.5.010.6.010.6.110.6.210.7.010.8.010.9.010.9.111.0.011.1.011.2.011.3.011.3.111.3.211.4.011.5.011.5.111.5.211.5.311.5.412.0.012.0.112.0.212.1.112.1.212.1.312.10.012.10.112.10.212.10.3 |
16.5.0 |
Show 4 moreShow less
| Package | Affected | Fixed |
|---|---|---|
net.sf.mpxjNuGet |
7.3.0 up to 16.5.0, plus listed versions 10.0.010.0.110.0.210.0.310.0.4 Show 45 moreShow less10.0.510.1.010.10.010.11.010.12.010.13.010.14.010.14.110.15.010.16.010.16.110.16.210.2.010.3.010.4.010.5.010.6.010.6.110.6.210.7.010.8.010.9.010.9.111.0.011.1.011.2.011.3.011.3.111.3.211.4.011.5.011.5.111.5.211.5.311.5.412.0.012.0.112.0.212.1.012.1.112.1.212.1.312.10.012.10.112.10.2 |
16.5.0 |
net.sf.mpxj-for-csharpNuGet |
7.3.0 up to 16.5.0, plus listed versions 10.0.010.0.110.0.210.0.310.0.4 Show 45 moreShow less10.0.510.1.010.10.010.11.010.12.010.13.010.14.010.14.110.15.010.16.010.16.110.16.210.2.010.3.010.4.010.5.010.6.010.6.110.6.210.7.010.8.010.9.010.9.111.0.011.1.011.2.011.3.011.3.111.3.211.4.011.5.011.5.111.5.211.5.311.5.412.0.012.0.112.0.212.1.012.1.112.1.212.1.312.10.012.10.112.10.2 |
16.5.0 |
net.sf.mpxj-for-vbNuGet |
7.3.0 up to 16.5.0, plus listed versions 10.0.010.0.110.0.210.0.310.0.4 Show 45 moreShow less10.0.510.1.010.10.010.11.010.12.010.13.010.14.010.14.110.15.010.16.010.16.110.16.210.2.010.3.010.4.010.5.010.6.010.6.110.6.210.7.010.8.010.9.010.9.111.0.011.1.011.2.011.3.011.3.111.3.211.4.011.5.011.5.111.5.211.5.311.5.412.0.012.0.112.0.212.1.012.1.112.1.212.1.312.10.012.10.112.10.2 |
16.5.0 |
net.sf.mpxj:mpxjMaven |
7.3.0 up to 16.5.0, plus listed versions 10.0.010.0.110.0.310.0.410.0.5 Show 45 moreShow less10.1.010.10.010.11.010.12.010.13.010.14.010.14.110.15.010.16.010.16.110.16.210.2.010.3.010.4.010.5.010.6.010.6.110.6.210.7.010.8.010.9.010.9.111.0.011.1.011.2.011.3.011.3.111.3.211.4.011.5.011.5.111.5.211.5.311.5.412.0.012.0.112.0.212.1.012.1.112.1.212.1.312.10.012.10.112.10.212.10.3 |
16.5.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-65829 is a medium vulnerability (CVSS 5.3) in Joniles Mpxj, published September 22, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 37th percentile. Fixed in MPXJ.Net 16.5.0.
References
github.com/joniles/mpxj/security/advisories/GHSA-7952-gx68-cjqr
github.com/joniles/mpxj/commit/4347315afab1ef5a2907978a754fbc5b0ff58e6f
github.com/joniles/mpxj/releases/tag/v16.5.0
github.com/advisories/GHSA-7952-gx68-cjqr
github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65829.json
nvd.nist.gov/vuln/detail/CVE-2026-65829
github.com/joniles/mpxj
pypi.org/project/mpxj
Left out here: 634 versions. The JSON record has them.