Vulnerability · Published Sep 22, 2026 · Assigned by GitHub_M
CVE-2026-65829MPXJ: Potential Path Traversal Vulnerability in Primavera P3 PRX and SureTrak STX readers
Medium 5.3
In plain English
A medium-severity path traversal in mpxj from joniles. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.4%top 62.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | net.sf.mpxj:mpxj | 16.5.0 | GHSA-7952-gx68-cjqr |
| NuGet | mpxj.net | 16.5.0 | GHSA-7952-gx68-cjqr |
| NuGet | net.sf.mpxj | 16.5.0 | GHSA-7952-gx68-cjqr |
| NuGet | net.sf.mpxj-for-csharp | 16.5.0 | GHSA-7952-gx68-cjqr |
| NuGet | net.sf.mpxj-for-vb | 16.5.0 | GHSA-7952-gx68-cjqr |
| PyPI | mpxj | 16.5.0 | GHSA-7952-gx68-cjqr |
| PyPI | mpxj | 16.5.0 | PYSEC-2026-4108 |
| RubyGems | mpxj | 16.5.0 | GHSA-7952-gx68-cjqr |
Affected products (as reported)
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
References
- https://github.com/joniles/mpxj/security/advisories/GHSA-7952-gx68-cjqr x_refsource_CONFIRM
- https://github.com/joniles/mpxj/commit/4347315afab1ef5a2907978a754fbc5b0ff58e6f x_refsource_MISC
- https://github.com/joniles/mpxj/releases/tag/v16.5.0 x_refsource_MISC