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TI-2026-85995 Aliases CVE-2026-123836GHSA-hrg3-q4wx-pv3m

Improper link resolution in JetBrains Datalore exposes SSH private keys

Priority MEDIUM 40CWE-59Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

JetBrains Datalore before 2026.4 has an improper link resolution flaw (CWE-59) that lets workspace collaborators obtain the owner's SSH private key through a Git backup. An attacker with a collaborator role on a shared workspace can read the key, which carries high confidentiality, integrity and availability impact according to the CVSS 3.1 vector with low privileges required.

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

Description from the CNA

In JetBrains Datalore before 2026.4 workspace collaborators could obtain the owner's SSH private key via Git backup

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00472 41st percentileScored 2026-11-07
Fix Fixed Datalore (JetBrains): 2026.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

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

Remediation

JetBrains fixes this in Datalore 2026.4, so upgrade Datalore to 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-2026-85821 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
    • TI-2026-85823 Command execution in JetBrains Datalore sidecar via mount brokerPriority LOW 33
    Show all 15 records →

Timeline

  1. 2026-11-06 Threatist record created from CVE-2026-123836
  2. 2026-11-06 Alias added: GHSA-hrg3-q4wx-pv3m
  3. 2026-11-06 CISA SSVC decision points changed
  4. 2026-11-06 Priority changed: MEDIUM → LOW
  5. 2026-11-08 Priority changed: LOW → MEDIUM

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