JetBrains Toolbox App: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen
WID-SEC-2026-4280 · first 02.11.2026 · updated 02.11.2026 · CVSS 9,0
What it is about
Die JetBrains Toolbox App ist ein Werkzeug zur Verwaltung, Aktualisierung und zum Starten von JetBrains-Entwicklungsumgebungen und -Tools. IntelliJ IDEA ist eine Java Entwicklungsumgebung (IDE). Ein entfernter, anonymer Angreifer kann eine Schwachstelle in JetBrains Toolbox App und JetBrains IntelliJ IDEA ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
Under what conditions?
Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.
What can happen in the worst case
An attacker could use the vulnerability to
- Sicherheitsvorkehrungen zu umgehen
Am I affected?
Affected according to the BSI:
- JetBrains Toolbox App <3.9.1
- JetBrains Toolbox App <3.8.2
- JetBrains IntelliJ IDEA <2026.3
- JetBrains IntelliJ IDEA <2026.2.4
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- JetBrains Toolbox App 3.9.1
- JetBrains Toolbox App 3.8.2
- JetBrains IntelliJ IDEA 2026.3
- JetBrains IntelliJ IDEA 2026.2.4
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- National Vulnerability Database CVE-2026-118697 vom 2026-11-01 nvd.nist.gov
CVE: CVE-2026-118697
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.