CVE-2026-56141 JetBrains CVE debrief

Who should care

Organizations using JetBrains Hub, especially those with exposed instances or integrations with other critical systems, should prioritize patching. Security teams and administrators responsible for maintaining development environments need to assess their exposure and take immediate action.

Technical summary

The vulnerability exists due to predictable restore codes in JetBrains Hub. This allows unauthenticated attackers to gain control of user accounts. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating that the vulnerability can be exploited over the network with low attack complexity, no privileges required, and no user interaction. Successful exploitation can lead to high impacts on confidentiality, integrity, and availability.

Defensive priority

High priority due to CVSS score of 9.8 and potential for easy exploitation leading to significant impact.

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.
• Review and update existing restore codes to ensure they are not predictable.
• Implement additional security measures such as multi-factor authentication for user accounts.
• Monitor JetBrains Hub instances for suspicious activity, especially related to account changes or login attempts.
• Conduct a thorough review of current security policies and procedures for JetBrains Hub administration and user management.

Evidence notes

The primary evidence for this vulnerability comes from the CVE record and NVD detail pages. The CVE was published and modified on June 19, 2026. The vulnerability affects JetBrains Hub versions before specific patches. Defenders should verify the affected versions and patch levels in their environments.

Official resources