# CVE-2021-30005: Code injection in n/a

> Attackers can execute arbitrary code locally via insufficient checks when importing projects from version control systems in PyCharm.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 May 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-qv38-pj4q-67hh

## What is CVE-2021-30005?

CVE-2021-30005 is a high-severity code injection vulnerability in n/a, published on 11 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In JetBrains PyCharm before 2020.3.4, local code execution was possible because of insufficient checks when getting the project from VCS.

Weakness: CWE-345 (Insufficient Verification of Data Authenticity)

## Which versions are affected by CVE-2021-30005?

It affects 1 product.


Products: Jetbrains Pycharm.

## How do I fix CVE-2021-30005?

No fix has been published for CVE-2021-30005 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-30005 being exploited?

There is no known exploitation of CVE-2021-30005 in the wild and no public exploit code.

Public exploit code:

- https://github.com/atorralba/CVE-2021-30005-POC (github_poc): https://github.com/atorralba/CVE-2021-30005-POC

## Other vulnerabilities in n/a

- [CVE-2026-65908](https://insights.sbomify.com/CVE-2026-65908/): Code injection in PyCharm (high 8.6)
- [CVE-2026-75060](https://insights.sbomify.com/CVE-2026-75060/): Missing authorization in PyCharm (high 8.4)
- [CVE-2026-25847](https://insights.sbomify.com/CVE-2026-25847/): Cross-site scripting in PyCharm (high 8.2)
- [CVE-2020-11694](https://insights.sbomify.com/CVE-2020-11694/): Hardcoded credentials in n/a (high 7.5)
- [CVE-2019-14958](https://insights.sbomify.com/CVE-2019-14958/): Denial of service in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-30005 and fix it if it is affected.

What it is: CVE-2021-30005 is a high-severity code injection vulnerability in n/a, published on 11 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-30005 in the wild and no public exploit code.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-30005/ (Markdown: https://insights.sbomify.com/CVE-2021-30005/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-30005
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-30005
- OSV: https://osv.dev/vulnerability/CVE-2021-30005

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-30005/
Summaries are generated and may contain mistakes; the official description above is the record.