PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-50242 JetBrains CVE debrief

CVE-2026-50242 is a critical authentication bypass vulnerability in JetBrains Hub. The issue allows for direct database access, leading to administrative access. Affected versions include those before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, and 2024.2.148429. The CVSS score is 10, indicating the highest severity. Defenders should prioritize patching due to the potential for significant impact.

Vendor
JetBrains
Product
Hub
CVSS
CRITICAL 10
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-19
Original CVE updated
2026-06-26
Advisory published
2026-06-19
Advisory updated
2026-06-26

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.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-50242 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-50242

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-50242 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-50242

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.