Description
In JetBrains Kotlin before 1.4.21, a vulnerable Java API was used for temporary file and folder creation. An attacker was able to read data from such files and list directories due to insecure permissions.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | kotlin | 1.3.31+ds1-3 | — |
| Debian 13 | kotlin | 1.3.31+ds1-3 | — |
| Debian 12 | kotlin | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | kotlin | No fix yet | — |
| Ubuntu 26.04 LTS | kotlin | No fix yet | — |
| Ubuntu 25.10 | kotlin | No fix yet | — |
| Ubuntu 24.04 LTS | kotlin | No fix yet | — |
| Ubuntu 22.04 LTS | kotlin | No fix yet | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | thingsboard +4 | 3.7-r1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.jetbrains.kotlin:kotlin-stdlib | < 1.4.21 | 1.4.21 | GHSA-cqj8-47ch-rvvq |
Advisories 3
- WID-SEC-2024-0794 Dell ECS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 11, 2026
- WID-SEC-2022-0607 Red Hat FUSE: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 9, 2026
- WID-SEC-2022-1375 JFrog Artifactory: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 12, 2025
References
- https://blog.jetbrains.com
- [kafka-users] 20210617 vulnerabilities mailing-list
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://blog.jetbrains.com/blog/2021/02/03/jetbrains-security-bulletin-q4-2020/
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpuapr2022.html