# MPXJ: Potential Path Traversal Vulnerability in Primavera P3 PRX and SureTrak STX readers Advisory record · `GHSA-7952-gx68-cjqr` - **Identifiers:** `GHSA-7952-gx68-cjqr` · `CVE-2026-65829` · `PYSEC-2026-4108` - **State:** Confirmed - **Severity:** CVSS 5.3 Medium - **Critical:** No - **Weakness (CWE):** [CWE-22](https://cwe.mitre.org/data/definitions/22.html) - **Tags:** [Path traversal](https://agentprime.io/advisories/tag/path-traversal.md) - **Published:** 22 Sept 2026 - **Updated:** 1 Oct 2026 - **Reviewed by a person:** No Published by the GitHub Advisory Database at 22 Sept 2026, 20:34 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. ## Affected packages - `MPXJ.Net` (NuGet): affected `>=7.3.0, <16.5.0`; fixed in `16.5.0` - `mpxj` (RubyGems): affected `>=7.3.0, <16.5.0`; fixed in `16.5.0` - `mpxj` (PyPI): affected `>=7.3.0, <16.5.0`; fixed in `16.5.0` - `net.sf.mpxj` (NuGet): affected `>=7.3.0, <16.5.0`; fixed in `16.5.0` - `net.sf.mpxj-for-csharp` (NuGet): affected `>=7.3.0, <16.5.0`; fixed in `16.5.0` - `net.sf.mpxj-for-vb` (NuGet): affected `>=7.3.0, <16.5.0`; fixed in `16.5.0` - `net.sf.mpxj:mpxj` (Maven): affected `>=7.3.0, <16.5.0`; fixed in `16.5.0` ## Machine-written summary Summary written by Claude Haiku from the source advisory. Not reviewed by a person. > MPXJ versions 7.3.0 up to 16.5.0 (including the NuGet, RubyGems, PyPI and Maven packages of the same name) can write files to arbitrary locations when reading a specially crafted Primavera P3 PRX or SureTrak STX file. An attacker would need to supply such a file for the application to read, so the risk comes from opening files from untrusted sources. Upgrade to version 16.5.0 or later; until then, do not read PRX or STX files from untrusted sources. Written 1 Nov 2026. ## Not analysed yet We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check. ## Severity and exploitation - 5.3 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`, from CNA (GitHub_M) - **CISA KEV:** Not listed. - **EPSS:** 0.0043, the 37th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline - 31 Oct 2026, 14:09 UTC: First seen by agentprime - 31 Oct 2026, 14:09 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-7952-gx68-cjqr) ## Sources - [GitHub Advisory Database: GHSA-7952-gx68-cjqr](https://github.com/advisories/GHSA-7952-gx68-cjqr) - [OSV: GHSA-7952-gx68-cjqr](https://osv.dev/vulnerability/GHSA-7952-gx68-cjqr) - - - - Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code. ## Check whether this affects you A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet. - With the agentprime MCP server (), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: - In a browser: reads your lockfile in the browser, never uploading it. - Whether it touches your code, with file and line: the Claude Code plugin, - As JSON: , or `POST https://api.agentprime.io/v1/match` with your packages () --- The web page: . Everything for agents: .