Account Takeover Vulnerability in JetBrains Datalore for SSO Sign-In
CVE-2026-123283

6.8MEDIUM

Key Information:

Vendor

Jetbrains
Status
Datalore
Vendor
CVE Published:
6 November 2026

What is CVE-2026-123283?

A security vulnerability in JetBrains Datalore allows unauthorized account takeover through Single Sign-On (SSO) sign-in functionality. Prior to version 2026.4, users could inadvertently gain access to accounts that were pre-registered. This flaw poses a significant risk to data integrity and user privacy, necessitating users to update their Datalore instances to ensure protection against potential account compromises.

Affected Version(s)

Datalore 0 < 2026.4

References

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

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.