Assessment
Why it matters
EPSS is 0.1%; technical severity is CVSS 8.6.
In JetBrains PyCharm before 2026.1.4, 2026.2 arbitrary code execution via malicious Python executable was possible on untrusted project open
Who should care
- Teams operating Pycharm
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Pycharm is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Vendor advisory from www.jetbrains.com
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Treatment intelligence
Remediation intelligence
Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.
Verification noteAutomated link verification has not completed for this guidance yet.
Technical details
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- CWE
- CWE-829
- Affected versions
- JetBrains Pycharm (End Excluding 2026.1.4)
- Fixed versions
- JetBrains Pycharm (Fixed from 2026.1.4)
- Published
- 23 July 2026
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
Signal timeline
- CVE published
- Latest EPSS score: 0.1%
- Signal calculated at 12