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TI-2026-85996 Aliases CVE-2026-123837GHSA-f6xc-hpj3-cp3j

Command injection in JetBrains IntelliJ IDEA Tomcat run configurations

Priority LOW 37CWE-78Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
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-78.

Summary

JetBrains IntelliJ IDEA before 2026.3, 2026.2.1 is affected. Improper neutralization of special elements in an OS command (CWE-78) lets command injection occur in untrusted projects that use Tomcat run configurations on WSL. An attacker who provides such a project needs a user to open it, and can then gain high confidentiality, integrity and availability impact.

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

Description from the CNA

In JetBrains IntelliJ IDEA before 2026.3, 2026.2.1 command injection was possible in untrusted projects via Tomcat run configurations on WSL

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00566 47th percentileScored 2026-11-07
Fix Fixed IntelliJ IDEA (JetBrains): 2026.3, 2026.2.1

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
JetBrainsIntelliJ IDEAbefore 2026.3, 2026.2.12026.3, 2026.2.1Patch availableCNA
  • IntelliJ IDEA VendorJetBrains Affected before 2026.3, 2026.2.1 Fixed in 2026.3, 2026.2.1 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:intellij_idea:*:*:*:*:*:*:*:*——JetBrains
  • cpe:2.3:a:jetbrains:intellij_idea:*:*:*:*:*:*:*:* Versions — — ·JetBrains

Remediation

JetBrains IntelliJ IDEA is fixed in 2026.3, 2026.2.1.

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

  • Fix · CNA IntelliJ IDEA (JetBrains) Fixed in 2026.3, 2026.2.1

Timeline

  1. 2026-11-06 Threatist record created from CVE-2026-123837
  2. 2026-11-06 CISA SSVC decision points changed
  3. 2026-11-06 Priority changed: MEDIUM → LOW
  4. 2026-11-06 Alias added: GHSA-f6xc-hpj3-cp3j
  5. 2026-11-07 CISA SSVC decision points changed

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