JetBrains IntelliJ IDEA: Mehrere Schwachstellen
WID-SEC-2026-1751 · first 01.06.2026 · updated 01.06.2026 · CVSS 8,0
What it is about
IntelliJ IDEA ist eine Java Entwicklungsumgebung (IDE). Ein Angreifer kann mehrere Schwachstellen in JetBrains IntelliJ IDEA ausnutzen, um beliebigen Programmcode auszuführen und um Informationen offenzulegen.
Under what conditions?
The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.
What can happen in the worst case
An attacker could use the vulnerability to
- beliebigen Programmcode auszuführen
- Informationen offenzulegen
Am I affected?
Affected according to the BSI:
- JetBrains IntelliJ IDEA <2026.1.1
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- JetBrains IntelliJ IDEA 2026.1.1
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-2026-49366 vom 2026-05-31 nvd.nist.gov
- National Vulnerability Database CVE-2026-49367 vom 2026-05-31 nvd.nist.gov
- National Vulnerability Database CVE-2026-49382 vom 2026-05-31 nvd.nist.gov
- National Vulnerability Database CVE-2026-49383 vom 2026-05-31 nvd.nist.gov
- JetBrains Fixed security issues vom 2026-05-31 www.jetbrains.com
CVE: CVE-2026-49366, CVE-2026-49367, CVE-2026-49382, CVE-2026-49383
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.