CVE-2026-64805
CVE-2026-64805 is a high-severity vulnerability in Jetbrains Webstorm with a CVSS 3.x base score of 8.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-829.
Key facts
- Severity: High (CVSS 3.x base score 8.4)
- EPSS exploit prediction: 0% (4th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-829
- Affected product: Jetbrains Webstorm
- Published:
- Last modified:
Description
In JetBrains WebStorm before 2026.2 arbitrary code execution was possible before granting project trust via project-local package-manager tooling
Frequently asked questions
- What is CVE-2026-64805?
- In JetBrains WebStorm before 2026.2 arbitrary code execution was possible before granting project trust via project-local package-manager tooling
- How severe is CVE-2026-64805?
- CVE-2026-64805 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-64805 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-64805?
- CVE-2026-64805 affects Jetbrains Webstorm. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-64805?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-64805 published?
- CVE-2026-64805 was published on 2026-07-23 and last updated on 2026-07-28.
References
Affected products (1)
- cpe:2.3:a:jetbrains:webstorm:*:*:*:*:*:*:*:*
More vulnerabilities in Jetbrains Webstorm
- CVE-2021-45977 — Critical (CVSS 9.8): JetBrains IntelliJ IDEA 2021.3.1 Preview, IntelliJ IDEA 2021.3.1 RC, PyCharm Professional 2021.3.1 RC, GoLand 2021.3.1,…
- CVE-2021-31897 — Critical (CVSS 9.8): In JetBrains WebStorm before 2021.1, code execution without user confirmation was possible for untrusted projects.
- CVE-2024-37051 — Critical (CVSS 9.3): GitHub access token could be exposed to third-party sites in JetBrains IDEs after version 2023.1 and less than:…
- CVE-2026-64806 — High (CVSS 8.4): In JetBrains WebStorm before 2026.2 arbitrary code execution was possible before granting project trust via the…
- CVE-2026-64804 — High (CVSS 8.4): In JetBrains WebStorm before 2026.2 arbitrary code execution was possible before granting project trust via…
- CVE-2026-64807 — High (CVSS 7.8): In JetBrains WebStorm before 2026.2 arbitrary code execution was possible via a project-supplied linter configuration
All CVEs affecting Jetbrains Webstorm →
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