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TI-2026-86015 Aliases CVE-2026-123856GHSA-9mgx-v4pf-rrrp

NTLM hash disclosure in JetBrains Toolbox App via SVG tool icons

Priority LOW 29CWE-522Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-522.

Summary

JetBrains Toolbox App before 3.6.1 is affected. A malicious Remote Development server can expose a user's NTLM hash through SVG tool icons, which is an insufficiently protected credentials flaw (CWE-522). A remote attacker needs no privileges, but the user must interact with the icon, which is required for the disclosure.

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

Description from the CNA

In JetBrains Toolbox App before 3.6.1 nTLM hash disclosure was possible via SVG tool icons from a Remote Development server

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00328 26th percentileScored 2026-11-07
Fix Fixed Toolbox App (JetBrains): 3.6.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
JetBrainsToolbox Appbefore 3.6.13.6.1Patch availableCNA
  • Toolbox App VendorJetBrains Affected before 3.6.1 Fixed in 3.6.1 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:jetbrains:toolbox:*:*:*:*:*:*:*:*——JetBrains
  • cpe:2.3:a:jetbrains:toolbox:*:*:*:*:*:*:*:* Versions — — ·JetBrains

Remediation

Update JetBrains Toolbox App to version 3.6.1, which fixes this issue.

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

  • Fix · CNA Toolbox App (JetBrains) Fixed in 3.6.1

Fixed in the same release

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

  • Release ·

    JetBrains Toolbox App 3.6.1

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-86014 JetBrains Toolbox App command injection via enterprise configuration URLsPriority LOW 36
    Show all 2 records →

Timeline

  1. 2026-11-06 Threatist record created from CVE-2026-123856
  2. 2026-11-06 CISA SSVC decision points changed
  3. 2026-11-06 Priority changed: MEDIUM → LOW
  4. 2026-11-06 Alias added: GHSA-9mgx-v4pf-rrrp

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