Code Execution Vulnerability in JetBrains Datalore by JetBrains
CVE-2026-123281

7.5HIGH

Key Information:

Vendor

Jetbrains
Status
Datalore
Vendor
CVE Published:
6 November 2026

What is CVE-2026-123281?

In JetBrains Datalore prior to version 2026.4, a vulnerability allows for command execution within the sidecar container through the mount broker. This flaw poses significant security risks, potentially allowing unauthorized users to run commands that compromise the integrity of the system. Users of affected versions are advised to update to the latest version to mitigate these risks.

Affected Version(s)

Datalore 0 < 2026.4

References

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

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.