CVE-2026-50242 JetBrains CVE debrief

Who should care

Organizations using JetBrains Hub, especially those with administrative access exposed to untrusted networks, should prioritize patching. The vulnerability's critical severity and potential for administrative access make it a high-risk issue.

Technical summary

The vulnerability (CVE-2026-50242) exists in JetBrains Hub versions before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, and 2024.2.148429. It allows for authentication bypass via direct database access, leading to administrative access. The CVSS:3.1 vector is AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H, indicating a critical vulnerability with high impact on confidentiality, integrity, and availability.

Defensive priority

High priority due to critical CVSS score and potential for administrative access

Recommended defensive actions

• Apply patches to update JetBrains Hub to version 2026.1.13757 or later, 2025.3.148033 or later, 2025.2.148048 or later, 2025.1.148120 or later, 2024.3.148430 or later, or 2024.2.148429 or later.
• Limit exposure by restricting access to JetBrains Hub from untrusted networks.
• Monitor JetBrains Hub instances for suspicious activity.
• Review and update access controls for JetBrains Hub to ensure least privilege access.
• Verify the integrity of JetBrains Hub installations and configurations.

Evidence notes

The CVE-2026-50242 vulnerability is confirmed in JetBrains Hub versions before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, and 2024.2.148429. The CVSS score of 10 indicates critical severity. Defenders should verify affected versions and patch levels.

Official resources