In JetBrains IntelliJ IDEA before 2026.3 command execution was possible via control characters in terminal command completion

Blind SSRF via Remote JSON Schema References in JetBrains IntelliJ IDEA

In JetBrains IntelliJ IDEA before 2026.3 blind SSRF was possible via remote references in JSON Schema validation

IntelliJ IDEA Path Traversal via JSON Schema References in Untrusted Projects

In JetBrains IntelliJ IDEA before 2026.3 path traversal was possible via JSON Schema references in untrusted projects

Server‑Side Request Forgery via Custom Plugin Repositories in JetBrains IntelliJ IDEA 2026.2 and Earlier

In JetBrains IntelliJ IDEA before 2026.3 sSRF was possible via custom plugin repositories

Untrusted Projects May Alter GPG Agent Configuration in IntelliJ IDEA

In JetBrains IntelliJ IDEA before 2026.3 untrusted projects could trigger changes to GPG agent configuration

Arbitrary File Write via Symlink during Plugin Extraction in JetBrains IntelliJ IDEA

In JetBrains IntelliJ IDEA before 2026.3 arbitrary file write was possible via symlinks when extracting plugin archives

Winter CMS: My Account preview exposes another backend user's profile by record ID

Winter CMS is a content management system built on the Laravel PHP framework. From 1.2.13 until 1.2.14, the Backend\Controllers\MyAccount controller inherits the FormController actions create, update, and preview while declaring an empty $requiredPermissions array, and formFindModelObject() resolves a caller-supplied record identifier through an unscoped Backend\Models\User query. Any authenticated backend user can request another sequential user identifier through /backend/backend/myaccount/preview/{other_user_id} or the inherited update action and read profile data including name, login, email, avatar, role, group membership, superuser status, and throttle state. Password material is not exposed, and existing model authorization guards block cross-user writes. This issue is fixed in version 1.2.14.

Arbitrary Code Execution via Symlink in Imported Settings Archive

In JetBrains IntelliJ IDEA before 2026.3 code execution was possible via symlinks in an imported settings archive

HTML Injection via Remote Development Editor Tabs in IntelliJ IDEA

In JetBrains IntelliJ IDEA before 2026.3 hTML injection was possible in Remote Development editor tabs

Untrusted Project Document Import Enables Code Execution in IntelliJ IDEA

In JetBrains IntelliJ IDEA before 2026.3 code execution via the document import was possible in untrusted projects

Stored XSS via Markdown Preview in IntelliJ IDEA Built‑In Web Server

In JetBrains IntelliJ IDEA before 2026.3, 2026.2.4 stored XSS was possible on the built-in web server via Markdown preview

Kotlin Script Dependency Injection Vulnerability in IntelliJ IDEA

In JetBrains IntelliJ IDEA before 2026.3 kotlin scripts could trigger dependency downloads from arbitrary repositories in untrusted projects

Hidden Run Control in Markdown Preview Enables Command Execution

In JetBrains IntelliJ IDEA before 2026.3, 2026.2.4 command execution via a hidden run control in the Markdown preview was possible

IntelliJ IDEA Server Side Request Forgery via annotations.xml

In JetBrains IntelliJ IDEA before 2026.3, 2026.2.4 sSRF was possible via annotations.xml files during indexing

Enable Disabled Plugins via External Dependency Settings

In JetBrains IntelliJ IDEA before 2026.3 improper checks could enable disabled plugins via external dependency settings

XML External Entity Deserialization Vulnerability in IntelliJ IDEA HTTP Client

In JetBrains IntelliJ IDEA before 2026.3, 2026.2.4 xXE attack was possible via an XML response to an HTTP Client request

Untrusted Project Database Connections in JetBrains IntelliJ IDEA

In JetBrains IntelliJ IDEA before 2026.3 database connections could be established in untrusted projects

Command Injection through Untrusted Tomcat Run Configurations on WSL in IntelliJ IDEA

In JetBrains IntelliJ IDEA before 2026.3, 2026.2.1 command injection was possible in untrusted projects via Tomcat run configurations on WSL

Remote Code Execution via UI Designer Form File in Safe Mode

In JetBrains IntelliJ IDEA before 2026.3 code execution was possible in Safe Mode via UI Designer form file

In multiple locations, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.