---
id: CVE-2026-112138
title: diem-project diem dmCodeEditor actions.class.php join path traversal
summary: >-
  A flaw has been found in diem-project diem up to 5.1.3. The impacted element
  is the function dmOs::join of the file
  dmFrontPlugin/modules/dmCodeEditor/actions/actions.class.php of the component
  dmCodeEditor. Executing a manipulation can …
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'
cvssSource: cna
cwe:
  - CWE-22
vendor: diem-project
product: diem
affected:
  - diem 5.1.0
  - diem 5.1.1
  - diem 5.1.2
  - diem 5.1.3
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-19T18:29:59.418757Z'
exploitAvailable: true
published: '2026-10-19'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T18:30:15.530Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-112138'
references:
  - url: 'https://vuldb.com/vuln/422243'
    label: >-
      VDB-422243 | diem-project diem dmCodeEditor actions.class.php join path
      traversal
  - url: 'https://vuldb.com/vuln/422243/cti'
    label: 'VDB-422243 | CTI Indicators (IOB, IOC, TTP, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-112138'
    label: CVE-2026-112138 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/1013200'
    label: >-
      Submit #1013200 | diem-project diem
      116974edfb9a5b8bd69cb13586dc62bcdbb485ad Absolute Path Traversal
  - url: 'https://github.com/diem-project/diem/issues/451'
  - url: 'https://github.com/diem-project/diem/'
tags:
  - cve.org
  - exploit-available
ingestedAt: '2026-10-19T12:27:23.802Z'
---

## Overview

A flaw has been found in diem-project diem up to 5.1.3. The impacted element is the function dmOs::join of the file dmFrontPlugin/modules/dmCodeEditor/actions/actions.class.php of the component dmCodeEditor. Executing a manipulation can lead to path traversal. The attack can be launched remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

## Affected

- `diem 5.1.0`
- `diem 5.1.1`
- `diem 5.1.2`
- `diem 5.1.3`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.