Authentication Bypass Vulnerability in JetBrains Datalore
CVE-2026-123287

5.9MEDIUM

Key Information:

Vendor

Jetbrains
Status
Datalore
Vendor
CVE Published:
6 November 2026

What is CVE-2026-123287?

A security issue in JetBrains Datalore, prior to version 2026.4, allows unauthorized users to download private notebook files through published interactive reports, thereby exposing sensitive data without requiring authentication.

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:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.