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TI-2026-46339 Aliases CVE-2026-64810GHSA-3rwj-4395-cj7h

Cross-site scripting in JetBrains IntelliJ IDEA

Priority LOW 27CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

In JetBrains IntelliJ IDEA before 2026.2 hTML injection was possible in an IDE notification, allowing silent user activity tracking

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00253 16th percentileScored 2026-11-07
Fix Fixed IntelliJ IDEA (JetBrains): 2026.2

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
JetBrainsIntelliJ IDEAbefore 2026.22026.2Patch availableCNA
  • IntelliJ IDEA VendorJetBrains Affected before 2026.2 Fixed in 2026.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jetbrains:intellij_idea:*:*:*:*:*:*:*:*before 2026.2VulnerableJetBrains
  • cpe:2.3:a:jetbrains:intellij_idea:*:*:*:*:*:*:*:* Versions before 2026.2 Vulnerable ·JetBrains

Remediation

  • Fix · CNA IntelliJ IDEA (JetBrains) Fixed in 2026.2

Fixed in the same release

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

  • Release ·

    JetBrains IntelliJ IDEA 2026.2

    6 records Highest priority Priority MEDIUM 4 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-46342 In JetBrains IntelliJ IDEA before 2026.2 unauthorized settings modification was possible in a Remote Development sessionPriority MEDIUM 49
    • TI-2026-46341 In JetBrains IntelliJ IDEA before 2026.2 unauthorized input injection was possible in a Remote Development sessionPriority MEDIUM 49
    • TI-2026-46344 In JetBrains IntelliJ IDEA before 2026.2 arbitrary code injection was possible via UI Designer form filesPriority MEDIUM 43
    Show all 6 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-64810
  2. 2026-10-03 Alias added: GHSA-3rwj-4395-cj7h

References

Advisory 1

  • TI-2024-24589 Insufficiently protected credentials in JetBrains IntelliJ IDEA CVSS 3.1CRITICAL 9.3
  • TI-2026-46342 In JetBrains IntelliJ IDEA before 2026.2 unauthorized settings modification was possible in a Remote Development session CVSS 3.1CRITICAL 10.0
  • TI-2026-46341 In JetBrains IntelliJ IDEA before 2026.2 unauthorized input injection was possible in a Remote Development session CVSS 3.1CRITICAL 10.0
  • TI-2019-07428 In several JetBrains IntelliJ IDEA Ultimate versions, an Application Server run… CVSS 3.0CRITICAL 9.8
  • TI-2019-06646 In several JetBrains IntelliJ IDEA versions, a Spring Boot run configuration with the… CVSS 3.0CRITICAL 9.8
  • TI-2020-09382 In JetBrains IntelliJ IDEA before 2020.1, the license server could be resolved to an untrusted host in some cases. CVSS 3.1CRITICAL 9.8
See all 76 →

Sources

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