Quick answers
- Is CVE-2026-64805 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-64805 being exploited in the wild.
- How severe is CVE-2026-64805?
- High severity, with a CVSS score of 8.4, published 23 July 2026.
- Which products and versions are affected?
- Jetbrains WebStorm before 2026.2.
- Is there a fix for CVE-2026-64805?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-64805 attacked?
- It is attacked with local access, in a network appliance.
- Am I affected by CVE-2026-64805?
- Check whether you run Jetbrains WebStorm at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A vulnerability in JetBrains WebStorm prior to version 2026.2 allowed for arbitrary code execution through the improper handling of project-local package-manager tooling. The flaw is categorized as CWE-829 (Inclusion of Functionality from Untrusted Control Sphere), where the IDE would execute local tooling before the user had confirmed the project was trusted. An attacker could exploit this by placing malicious scripts or binaries within a project's local environment that the IDE automatically invokes upon opening. This local attack vector requires no special privileges and can lead to full system compromise. The issue is resolved in WebStorm version 2026.2.
Affected products
- JetBrains WebStorm before 2026.2
Timeline
- 2026-07-23: disclosed
- 2026-07-23: advisory