How severe is CVE-2021-30005?

CVE-2021-30005 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-30005 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-30005?

CVE-2021-30005 affects Jetbrains Pycharm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-30005?

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-2021-30005 published?

CVE-2021-30005 was published on 2021-05-11 and last updated on 2026-06-17.

CVE-2021-30005

CVE-2021-30005 is a high-severity vulnerability in Jetbrains Pycharm with a CVSS 3.x base score of 7.8. 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-345.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Affected product: Jetbrains Pycharm
Published: 2021-05-11
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2021-30005?: In JetBrains PyCharm before 2020.3.4, local code execution was possible because of insufficient checks when getting the project from VCS.
How severe is CVE-2021-30005?: CVE-2021-30005 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-30005 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-30005?: CVE-2021-30005 affects Jetbrains Pycharm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-30005?: 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-2021-30005 published?: CVE-2021-30005 was published on 2021-05-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jetbrains:pycharm:*:*:*:*:*:*:*:*

More vulnerabilities in Jetbrains Pycharm

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-2026-25847 — High (CVSS 8.2): In JetBrains PyCharm before 2025.3.2 a DOM-based XSS on Jupyter viewer page was possible
CVE-2020-11694 — High (CVSS 7.5): In JetBrains PyCharm 2019.2.5 and 2019.3 on Windows, Apple Notarization Service credentials were included. This is…
CVE-2019-14958 — High (CVSS 7.5): JetBrains PyCharm before 2019.2 was allocating a buffer of unknown size for one of the connection processes. In a very…
CVE-2022-29821 — Medium (CVSS 6.9): In JetBrains Rider before 2022.1 local code execution via links in ReSharper Quick Documentation was possible

All CVEs affecting Jetbrains Pycharm →

Other CWE-345 (Insufficient Verification of Data Authenticity) vulnerabilities

CVE-2026-35051 — Critical (CVSS 10.0): Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there is an…
CVE-2014-8165 — Critical (CVSS 10.0): scripts/amsvis/powerpcAMS/amsnet.py in powerpc-utils-python uses the pickle Python module unsafely, which allows remote…
CVE-2026-50195 — Critical (CVSS 9.9): containerd is an open-source container runtime. Versions prior to 2.3.2, 2.2.5 and 2.1.9 contain a vulnerability in the…
CVE-2022-36130 — Critical (CVSS 9.9): HashiCorp Boundary up to 0.10.1 did not properly perform data integrity checks to ensure the resources were associated…
CVE-2026-50214 — Critical (CVSS 9.8): The /v1/Plan service relies entirely on a shared global API token for full administrative management, allowing…
CVE-2025-15385 — Critical (CVSS 9.8): Insufficient Verification of Data Authenticity vulnerability in TECNO Mobile com.Afmobi.Boomplayer allows…

Browse all CWE-345 (Insufficient Verification of Data Authenticity) vulnerabilities →