CVE-2021-30504 json
In JetBrains IntelliJ IDEA before 2021.1, DoS was possible because of unbounded resource allocation.
published 5y ago modified 4mo ago also EUVD-2021-17425
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.3%
- EPSS 2.3% chance of exploitation in 30 days, percentile 83%
- public exploits
- 0
- none known
Summary
In JetBrains IntelliJ IDEA before 2021.1, DoS was possible because of unbounded resource allocation.
Patch / fix
- jetbrains intellij_idea 2021.1
Is CVE-2021-30504 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
2.31% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
blog.jetbrains.com
vendor-advisory
-
blog.jetbrains.com
/blog/2021/05/07/jetbrains-security-bulletin-q1-2021/
vendor-advisory
Sources
- CVE List CVE-2021-30504
- NVD CVE-2021-30504
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.