CVE-2026-65829 json
MPXJ: Potential Path Traversal Vulnerability in Primavera P3 PRX and SureTrak STX readers
published 2026-09-22 47 d ago modified 2026-10-01 38 d ago also GHSA-7952-gx68-cjqr , PYSEC-2026-4108 , EUVD-2026-84819
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 37%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- nuget MPXJ.Net 16.5.0
- rubygems mpxj 16.5.0
- pypi mpxj 16.5.0
- nuget net.sf.mpxj 16.5.0
- nuget net.sf.mpxj-for-csharp 16.5.0
- nuget net.sf.mpxj-for-vb 16.5.0
- maven net.sf.mpxj:mpxj 16.5.0
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 46 d ago
Exploit prediction
0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| OSV | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| GitHub | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | MPXJ.Net | >=7.3.0, <16.5.0 |
16.5.0 |
| rubygems | mpxj | >=7.3.0, <16.5.0 |
16.5.0 |
| pypi | mpxj | >=7.3.0, <16.5.0 |
16.5.0 |
| nuget | net.sf.mpxj | >=7.3.0, <16.5.0 |
16.5.0 |
| nuget | net.sf.mpxj-for-csharp | >=7.3.0, <16.5.0 |
16.5.0 |
| nuget | net.sf.mpxj-for-vb | >=7.3.0, <16.5.0 |
16.5.0 |
| maven | net.sf.mpxj:mpxj | >=7.3.0, <16.5.0 |
16.5.0 |
Affected products
- joniles mpxj
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/joniles/mpxj/commit/4347315afab1ef5a2907978a754fbc5b0ff58e6f
web
-
github.com
/joniles/mpxj/security/advisories/GHSA-7952-gx68-cjqr
web
-
github.com
/joniles/mpxj/releases/tag/v16.5.0
web
-
github.com
/joniles/mpxj
package
-
pypi.org
/project/mpxj
package
-
github.com
/advisories/GHSA-7952-gx68-cjqr
advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-65829
advisory
Sources
- CVE List CVE-2026-65829
- GitHub Advisory GHSA-7952-gx68-cjqr
- NVD CVE-2026-65829
- OSV PYSEC-2026-4108
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