JetBrains WebStorm: Mehrere Schwachstellen ermöglichen Codeausführung
WID-SEC-2026-2507 · first 24.07.2026 · updated 24.07.2026 · CVSS 8,4
What it is about
WebStorm ist eine Entwicklungsumgebung für JavaScript. Ein lokaler Angreifer kann mehrere Schwachstellen in JetBrains WebStorm ausnutzen, um beliebigen Programmcode auszuführen.
Under what conditions?
Only with access to the device or an account on it. Often the second step after a phishing email.
What can happen in the worst case
An attacker could use the vulnerability to
- beliebigen Programmcode auszuführen
Am I affected?
Affected according to the BSI:
- JetBrains WebStorm <2026.2
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- JetBrains WebStorm 2026.2
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)
- JetBrainsFixed security issues vom 2026-07-23 www.jetbrains.com
- GitHub Advisory Database vom 2026-07-23 github.com
- GitHub Advisory Database vom 2026-07-23 github.com
- GitHub Advisory Database vom 2026-07-23 github.com
- GitHub Advisory Database vom 2026-07-23 github.com
CVE: CVE-2026-64804, CVE-2026-64805, CVE-2026-64806, CVE-2026-64807
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.