---
id: CVE-2026-123839
title: >-
  In JetBrains IntelliJ IDEA before 2026.3 opening arbitrary URLs without
  confirmation was possible via the Remote Development port forwarding model
summary: >-
  In JetBrains IntelliJ IDEA before 2026.3 opening arbitrary URLs without
  confirmation was possible via the Remote Development port forwarding model
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-357
vendor: JetBrains
product: IntelliJ IDEA
affected:
  - intellij_idea < 2026.3
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T16:39:01.358697Z'
published: '2026-11-06'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T16:49:08.852Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-123839'
references:
  - url: 'https://www.jetbrains.com/privacy-security/issues-fixed/'
tags:
  - cve.org
ingestedAt: '2026-11-06T16:57:43.117Z'
epss: 0.00254
epssPercentile: 0.16995
---

## Overview

In JetBrains IntelliJ IDEA before 2026.3 opening arbitrary URLs without confirmation was possible via the Remote Development port forwarding model

## Affected

- `intellij_idea < 2026.3`

## Remediation

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