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TI-2026-85828 Aliases CVE-2026-123286GHSA-8rp7-pxgq-3pgc

Improper authorization in JetBrains Datalore exposes session token

Priority LOW 26CWE-863Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

JetBrains Datalore before 2026.4 has an incorrect authorization flaw (CWE-863) that lets a user read the notebook owner's file storage session token. An attacker needs low privileges and a network position that makes the attack hard to carry out, and no user interaction is required.

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

Description from the CNA

In JetBrains Datalore before 2026.4 improper authorisation allowed read the notebook owner's file storage session token

Why it matters now

EPSS 0.00179 7th 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

Update JetBrains Datalore to version 2026.4 or later.

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-2026-123286
  2. 2026-11-06 Alias added: GHSA-8rp7-pxgq-3pgc
  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