Pycharm
CVE-2021-30005
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A08:2025 - Software or Data Integrity Failures
ASVS 5.0
V15 - Secure Coding and Architecture Data authenticity verification
|
| Impact | CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required. |
| Exploit ScenarioDerived | Successful exploitation could compromise the high-severity affected system. |
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Alert meAnalysisAI
In JetBrains PyCharm before 2020.3.4, local code execution was possible because of insufficient checks when getting the project from VCS. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
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Technical ContextAI · show details
This vulnerability is classified under CWE-345. In JetBrains PyCharm before 2020.3.4, local code execution was possible because of insufficient checks when getting the project from VCS. Affected products include: Jetbrains Pycharm. Version information: before 2020.3.4.
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Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
In JetBrains PyCharm before 2020.3.4, local code execution was possible because of insufficient checks when getting the project from VCS.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
Affected Products (CPE)NVD
In JetBrains PyCharm 2019.2.5 and 2019.3 on Windows, Apple Notarization Service credentials were included. Rated high se
Arbitrary code execution in JetBrains PyCharm before 2026.1.4 and 2026.2 lets an attacker who supplies a crafted project
Code execution in JetBrains PyCharm before 2026.2.1 is possible through Jupyter MCP (Model Context Protocol) tools that
In JetBrains PyCharm before 2025.3.2 a DOM-based XSS on Jupyter viewer page was possible [CVSS 8.2 HIGH]
The embedded browser in JetBrains desktop IDEs - IntelliJ IDEA, PyCharm, PhpStorm, RubyMine, WebStorm, GoLand, Rider, CL
In JetBrains Rider before 2022.1 local code execution via links in ReSharper Quick Documentation was possible. Rated hig
GitHub access token could be exposed to third-party sites in JetBrains IDEs after version 2023.1 and less than: IntelliJ
JetBrains PyCharm before 2019.2 was allocating a buffer of unknown size for one of the connection processes. Rated high
Stored XSS in JetBrains PyCharm's Jupyter notebook Markdown cell renderer allows a remote, unauthenticated attacker to e
Cross-site scripting in JetBrains PyCharm's Quick Documentation rendering feature (before version 2026.2.1) enables code
In JetBrains PyCharm before 2022.1 exposure of the debugger port to the internal network was possible. Rated low severit
GitHub PoC
Exploit-DB