CVE-2021-37540

Name: CVE-2021-37540
Creator: NVD / NIST
Published: 2021-08-06T14:15:07.957+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.66%

Last modified Jun 17, 2026

CVE-2021-37540 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. In JetBrains Hub before 2021.1.13262, a potentially insufficient CSP for the Widget deployment feature was used.. EPSS estimates a 0.66% chance of exploitation in the next 30 days.

Description

In JetBrains Hub before 2021.1.13262, a potentially insufficient CSP for the Widget deployment feature was used.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS Probability

0.66%

47.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Jetbrains	Hub	< 2021.1.13262

References

https://blog.jetbrains.com/blog/2021/08/05/jetbrains-security-bulletin-q2-2021/Vendor Advisory
https://blog.jetbrains.com/blog/2021/08/05/jetbrains-security-bulletin-q2-2021/Vendor Advisory

Timeline

Published: Aug 6, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-37540?

In JetBrains Hub before 2021.1.13262, a potentially insufficient CSP for the Widget deployment feature was used.

How severe is CVE-2021-37540?

CVE-2021-37540 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.

How do I fix CVE-2021-37540?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-37540?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST