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TI-2026-85823 Aliases CVE-2026-123281GHSA-96qf-j59p-cg96

Command execution in JetBrains Datalore sidecar via mount broker

Priority LOW 33CWE-88Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-88.

Summary

JetBrains Datalore before 2026.4 is affected. Improper neutralization of argument delimiters in a command (CWE-88) lets notebook code run commands in the sidecar container through the mount broker. An attacker with low privileges and network access can run these commands, with high impact to confidentiality, integrity and availability.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

In JetBrains Datalore before 2026.4 notebook code could execute commands in the sidecar container via the mount broker

Why it matters now

EPSS 0.00365 30th percentileScored 2026-11-07
Fix Fixed Datalore (JetBrains): 2026.4

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
JetBrainsDatalorebefore 2026.42026.4Patch availableCNA
  • Datalore VendorJetBrains Affected before 2026.4 Fixed in 2026.4 Patch available CNA

Remediation

Upgrade JetBrains Datalore to version 2026.4, which fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA Datalore (JetBrains) Fixed in 2026.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    JetBrains Datalore 2026.4

    15 records Highest priority Priority MEDIUM 1 MEDIUM, 14 LOW

    Other records, highest priority first

    • TI-2026-85995 Improper link resolution in JetBrains Datalore exposes SSH private keysPriority MEDIUM 40
    • TI-2026-85821 Incorrect authorization in JetBrains Datalore allows code execution by viewersPriority LOW 39
    • TI-2026-85993 Improper scope validation in JetBrains Datalore database tasksPriority LOW 35
    Show all 15 records →

Timeline

  1. 2026-11-06 Threatist record created from CVE-2026-123281
  2. 2026-11-06 Alias added: GHSA-96qf-j59p-cg96
  3. 2026-11-08 Priority changed: MEDIUM → LOW

References

Other 1

  • TI-2026-45031 Deserialization of untrusted data in JetBrains TeamCity KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18053 In JetBrains TeamCity before 2023.11.4 authentication bypass allowing to perform admin actions was possible KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-22884 In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18054 In JetBrains TeamCity before 2023.11.4 path traversal allowing to perform limited admin actions was possible KEVCVSS 3.1HIGH 7.3
  • TI-2024-15905 In JetBrains TeamCity before 2023.11.3 authentication bypass leading to RCE was possible CVSS 3.1CRITICAL 9.8
  • TI-2024-24589 Insufficiently protected credentials in JetBrains IntelliJ IDEA CVSS 3.1CRITICAL 9.3
See all 787 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences