CVE-2026-41882

Description of the Vulnerability

The vulnerability CVE-2026-41882 affects JetBrains IntelliJ IDEA, a popular integrated development environment (IDE) for Java developers. It allows attackers to read arbitrary local files through the built-in web server component. This flaw exists in versions of IntelliJ IDEA prior to 2026.1.1, enabling malicious actors to access sensitive data stored on the system. The vulnerability was disclosed on 2026-04-30 and has a CVSS score of 7.4 (HIGH), indicating significant risk.

Systems Affected

The vulnerability impacts the following versions of JetBrains IntelliJ IDEA: - 2024.3.7.1 - 2025.1.7.1 - 2025.2.6.2 - 2025.3.4.1 - 2026.1.1 Users with these versions are advised to apply patches immediately to mitigate the risk of exploitation.

Impact and Exploitability

The vulnerability allows attackers to read arbitrary local files by leveraging the built-in web server in IntelliJ IDEA. This could lead to unauthorized access to sensitive data, including system configurations, user credentials, or other critical information stored on the host machine. The exploit is remotely exploitable (AV:N/AC:L), meaning an attacker can trigger it without direct user interaction. Due to its high CVSS score, the vulnerability is considered a critical security risk for organizations using outdated versions of IntelliJ IDEA.

Indicators of Compromise (IOCs)

No hay Indicadores de Compromiso publicos disponibles.

Mitigation and Patches

The recommended mitigation is to update JetBrains IntelliJ IDEA to version 2026.1.1 or later, which includes the patch for this vulnerability. Users should also review their system logs for suspicious activity related to file access or unauthorized web server requests. Additionally, ensuring that the IDE’s built-in web server is configured with strict permissions and network restrictions can reduce the attack surface. If an update is not immediately possible, limiting access to the IDE and monitoring for unusual file read operations is advised.