Code Execution Vulnerability in JetBrains Datalore
CVE-2026-123835

5.9MEDIUM

Key Information:

Vendor

Jetbrains
Status
Datalore
Vendor
CVE Published:
6 November 2026

What is CVE-2026-123835?

A code execution vulnerability exists in JetBrains Datalore prior to version 2026.4, allowing attackers to execute code in the context of another user's computation due to a race condition during the upload of initialization scripts. This flaw can potentially compromise user data and facilitate unauthorized operations within the application.

Affected Version(s)

Datalore 0 < 2026.4

References

https://www.jetbrains.com/privacy-security/issues-fixed/

CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.