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CVE-2026-123839

Quick assessment

Affected
JetBrains IntelliJ IDEA
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 JetBrains IntelliJ IDEA 2026.3 之前的版本中，通过远程开发的端口转发功能，用户可以在未进行确认的情况下打开任意 URL。

CVSS 4.7 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
JetBrains IntelliJ IDEA < 2026.3 affected
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I. Basic Information for CVE-2026-123839

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In JetBrains IntelliJ IDEA before 2026.3 opening arbitrary URLs without confirmation was possible via the Remote Development port forwarding model
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对危险操作的UI警示不充分
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
JetBrains IntelliJ IDEA 0 ~ 2026.3 -

II. Public POCs for CVE-2026-123839

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-123839

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Vendor Pages for CVE-2026-123839 (1)

Same Patch Batch · JetBrains · 2026-11-06 · 89 CVEs total

CVE-2026-123832 9.6 CRITICAL CLion 2026.2 前 Safe Mode 下 JSON 编译库远程代码执行
CVE-2026-123831 9.6 CRITICAL CLion 2026.1.4 前版本 Meson 配置远程代码执行漏洞
CVE-2026-123294 9.6 CRITICAL JetBrains Hub 2026.2.52556 前验证流程提权漏洞
CVE-2026-123279 9.0 CRITICAL JetBrains Datalore 2026.4 前代码执行漏洞
CVE-2026-123836 8.8 HIGH JetBrains Datalore 2026.4 前 SSH 私钥泄露漏洞
CVE-2026-123323 8.4 HIGH YouTrack 多版本应用组件主机 URL 验证漏洞
CVE-2026-123301 8.2 HIGH IntelliJ IDEA 2026.3 之前 dOM 型 XSS 漏洞
CVE-2026-123317 8.1 HIGH JetBrains Ktor 3.6.1 之前会话伪造漏洞
CVE-2026-123280 8.1 HIGH JetBrains Datalore 2026.2.4 前未认证代码执行漏洞
CVE-2026-123295 8.1 HIGH JetBrains Hub 2026.2.52519 前双因素认证可被禁用
CVE-2026-123837 7.8 HIGH IntelliJ IDEA 2026.2.1 以下版本 WSL Tomcat 命令注入漏洞
CVE-2026-123321 7.8 HIGH WebStorm 2026.3 前Grunt/Gulp任务加载代码执行漏洞
CVE-2026-123838 7.8 HIGH IntelliJ IDEA 2026.3 前版本 UI 设计器远程代码执行漏洞
CVE-2026-123841 7.8 HIGH IntelliJ IDEA 2026.3 前版本导入设置时存在代码执行漏洞
CVE-2026-123293 7.8 HIGH IntelliJ IDEA 2026.2.4 Terraform 配置远程代码执行漏洞
CVE-2026-123302 7.8 HIGH IntelliJ IDEA 远程代码执行漏洞（脚本引擎发现）
CVE-2026-123276 7.8 HIGH CLion 2026.3 前 Safe Mode 远程代码执行漏洞
CVE-2026-123853 7.8 HIGH IntelliJ IDEA 2026.2.2 安全模式远程代码执行漏洞
CVE-2026-123304 7.8 HIGH IntelliJ IDEA 2026.3 前 ShellCheck 路径远程代码执行漏洞
CVE-2026-123324 7.7 HIGH YouTrack 2026.2.19562 之前共享邮箱信息泄露漏洞

Showing top 20 of 89 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: IntelliJ IDEA
Same vendor: JetBrains
Same weakness: CWE-357