CVE-2026-64809
CVE-2026-64809 is a high-severity vulnerability in Jetbrains Phpstorm 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 Phpstorm
- Published:
- Last modified:
Description
In JetBrains PhpStorm before 2026.2 arbitrary code execution was possible before granting project trust via the configured interpreter
Frequently asked questions
- What is CVE-2026-64809?
- In JetBrains PhpStorm before 2026.2 arbitrary code execution was possible before granting project trust via the configured interpreter
- How severe is CVE-2026-64809?
- CVE-2026-64809 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-2026-64809 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-2026-64809?
- CVE-2026-64809 affects Jetbrains Phpstorm. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-64809?
- 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-2026-64809 published?
- CVE-2026-64809 was published on 2026-07-23 and last updated on 2026-07-28.
References
Affected products (1)
- cpe:2.3:a:jetbrains:phpstorm:*:*:*:*:*:*:*:*
More vulnerabilities in Jetbrains Phpstorm
- 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-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-2026-64808 — High (CVSS 8.4): In JetBrains PhpStorm before 2026.2 arbitrary code execution was possible before granting project trust via project…
- CVE-2021-25764 — Medium (CVSS 5.3): In JetBrains PhpStorm before 2020.3, source code could be added to debug logs.
- CVE-2022-48435 — Low (CVSS 3.3): In JetBrains PhpStorm before 2023.1 source code could be logged in the local idea.log file
All CVEs affecting Jetbrains Phpstorm →
Other CWE-829 vulnerabilities
- CVE-2026-1699 — Critical (CVSS 10.0): In the Eclipse Theia Website repository, the GitHub Actions workflow .github/workflows/preview.yml used…
- CVE-2025-70974 — Critical (CVSS 10.0): Fastjson before 1.2.48 mishandles autoType because, when an @type key is in a JSON document, and the value of that key…
- CVE-2025-0982 — Critical (CVSS 10.0): Sandbox escape in the JavaScript Task feature of Google Cloud Application Integration allows an actor to execute…
- CVE-2021-41037 — Critical (CVSS 10.0): In Eclipse p2, installable units are able to alter the Eclipse Platform installation and the local machine via…
- CVE-2022-1161 — Critical (CVSS 10.0): An attacker with the ability to modify a user program may change user program code on some ControlLogix, CompactLogix,…
- CVE-2020-4561 — Critical (CVSS 10.0): IBM Cognos Analytics 11.0 and 11.1 DQM API allows submitting of all control requests in unauthenticated sessions. This…