CVE-2026-65829

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.

Overview

State: PUBLISHED
Assigner (CNA): GitHub_M
CVSS severity: MEDIUM
CVSS score: 5.3 / 10
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Effective score: 5.3 / 10 MEDIUM source: CNA overview
CWE(s): CWE-22
Reserved: 2026-07-22
Published: 2026-09-22 19:54 UTC
Last updated: 2026-09-22 19:54 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/65xxx/CVE-2026-65829.json

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-22 20:17:05 UTC
NVD last modified: 2026-09-22 20:17:05 UTC
NVD CVSS v3.1: 5.3 / 10 MEDIUM source: security-advisories@github.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Exploitability subscore: 3.9 / 10
Impact subscore: 1.4 / 10

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-84819
Assigner: GitHub_M
Published: Sep 22, 2026, 7:54:19 PM
Updated: Sep 23, 2026, 12:41:05 PM
EUVD base score (CVSS 3.1): 5.3 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EUVD-reported EPSS: 0.0000
Vendors: joniles
Products: mpxj (7.3.0, < 16.5.0)
Aliases: GHSA-7952-gx68-cjqr

ENISA 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.

EUVD references (3)

Affected products (1)

Vendor	Product	Versions	Platforms
joniles	mpxj	`>= 7.3.0, < 16.5.0` (affected)	—

Vendor references (3)

References embedded in the original CVE record by the assigning CNA.

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

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (3)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/joniles/mpxj/commit/4347315afab1ef5a2907978a754fbc5b0ff58e6f security-advisories@github.com
https://github.com/joniles/mpxj/releases/tag/v16.5.0 security-advisories@github.com
https://github.com/joniles/mpxj/security/advisories/GHSA-7952-gx68-cjqr security-advisories@github.com

Remediations (10)

Microsoft and Adobe Patch Tuesday, August 2026 Security Update Review

web:blog.qualys.com

The August 2026 Microsoft Patch Tuesday release delivers security fixes for vulnerabilities affecting a wide range of Microsoft products and services.

2026-09-23 15:45 UTC
Over 21,000 Microsoft Exchange Servers Remain Exposed to Active CVE ...

web:cybersecuritynews.com

Nearly 22,000 Microsoft Exchange servers worldwide are still running unpatched against CVE - 2026 -62911, a critical authentication bypass vulnerability that attackers can exploit to seize control of enterprise email infrastructure.

2026-09-23 15:45 UTC
August 2026 cumulative update - .NET Framework | Microsoft Learn

web:learn.microsoft.com

This update installs the complete .NET Framework 3.5 product for Windows 11, version 26H1 (build version 28000) and newer. Unlike traditional cumulative updates that patch individual components, this update delivers the full .NET Framework 3.5 product as a standalone installer. It replaces any previously installed version.

2026-09-23 15:45 UTC
Security Update Guide - Microsoft

web:msrc.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-09-23 15:45 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Access Microsoft Security Response Center's guide to address vulnerabilities, manage security risks, and keep your systems protected with the latest updates.

2026-09-23 15:45 UTC
Microsoft Exchange Vulnerability CVE-2026-62911: What Administrators ...

web:securityboulevard.com

Microsoft's August 2026 Patch Tuesday included a fix for CVE - 2026 -62911, a high-severity authentication bypass vulnerability affecting Exchange Server 2016, 2019, and Subscription Edition. The severity has a CVSS score of 8.0 from Microsoft.

2026-09-23 15:45 UTC
Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva

web:senserva.com

Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

2026-09-23 15:45 UTC
Description of the security update for Office 2016: August 11, 2026 ...

web:support.microsoft.com

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home. (See What version of Office am I using?) How to get and install the update Method 1: Microsoft Update This update is available from Microsoft Update. When you turn on ...

2026-09-23 15:45 UTC
August's Patch Tuesday is a monster: 751 fixes, with an exploited ...

web:www.computerworld.com

August's Patch Tuesday is a big one: 751 fixes, an exploited WinSock flaw and plenty of critical Windows, Office and Exchange issues.

2026-09-23 15:45 UTC
Patch Tuesday - August 2026 - Rapid7

web:www.rapid7.com

Microsoft is publishing 421 vulnerabilities on August 2026 Patch Tuesday, including 236 vulnerabilities in Windows. Rapid7 has disclosed the second in a two-part critical remote execution vulnerability chain in SharePoint.

2026-09-23 15:45 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-65829.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "mpxj",
          "vendor": "joniles",
          "versions": [
            {
              "status": "affected",
              "version": ">= 7.3.0, < 16.5.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-22T19:54:19.224Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/joniles/mpxj/security/advisories/GHSA-7952-gx68-cjqr",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/joniles/mpxj/security/advisories/GHSA-7952-gx68-cjqr"
        },
        {
          "name": "https://github.com/joniles/mpxj/commit/4347315afab1ef5a2907978a754fbc5b0ff58e6f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/joniles/mpxj/commit/4347315afab1ef5a2907978a754fbc5b0ff58e6f"
        },
        {
          "name": "https://github.com/joniles/mpxj/releases/tag/v16.5.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/joniles/mpxj/releases/tag/v16.5.0"
        }
      ],
      "source": {
        "advisory": "GHSA-7952-gx68-cjqr",
        "discovery": "UNKNOWN"
      },
      "title": "MPXJ: Potential Path Traversal Vulnerability in Primavera P3 PRX and SureTrak STX readers"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-65829",
    "datePublished": "2026-09-22T19:54:19.224Z",
    "dateReserved": "2026-07-22T23:16:47.752Z",
    "dateUpdated": "2026-09-22T19:54:19.224Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}