Improper Authorization in JetBrains Datalore Enables File Modifications
CVE-2026-123289

5.4MEDIUM

Key Information:

Vendor

Jetbrains
Status
Datalore
Vendor
CVE Published:
6 November 2026

What is CVE-2026-123289?

JetBrains Datalore versions prior to 2026.4 contain a vulnerability where improper authorization processes permit notebook viewers to alter files. This flaw can lead to unauthorized changes, compromising the integrity of documents and potentially exposing sensitive information. Users are advised to update to the latest version to safeguard against this issue.

Affected Version(s)

Datalore 0 < 2026.4

References

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

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.