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CVE-2020-15824 JetBrains Kotlin

Affected softwareJetBrains Kotlin
Severity8.8 High CVSS 3.1 2 scores
WeaknessImproper privilege management (CWE-269)
Published8 Aug 2020
Updated17 Jun 2026

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.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 6 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 1.9% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

VRT has not found a public code change for this CVE yet.

  • Protection none
  • Action not pursued
  • Review automated Upstream data
  • Record active
Decided by Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read
Finding This CVE affects a known product, but nothing published names a fix and nothing published shows an exploit. That is a statement about the evidence, not about the defect — it does not mean the vulnerability is unimportant or unreachable, only that neither of the two things VRT can act on exists.

CVSS

8.8 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H NVD Primary published
CVSS 2.0 6.5 none AV:N/AC:L/Au:S/C:P/I:P/A:P NVD Primary

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update January 2022 ↗ CPU 2022-Q1 Oracle Communications / Policy (Kotlin) (1.14.0)
Oracle Critical Patch Update October 2021 ↗ CPU 2021-Q4 Oracle Financial Services Applications / Web UI (Kotlin) (14.2, 14.3, 14.5)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Communications Policy (Kotlin) 1.14.0 1.14.0
Oracle Financial Services Applications Web UI (Kotlin) 14.2, 14.3, 14.5 14.2 · 14.3 · 14.5

Products and versions

3 products, 8 version entries
SourceVendorProductSchemeAffected versions
nvd jetbrains kotlin generic 1.4.0:milestone1 · 1.4.0:milestone2 · 1.4.0:milestone3 · 1.4.0:rc
nvd oracle banking extensibility workbench generic 14.2 · 14.3 · 14.5
nvd oracle communications cloud native core policy generic 1.14.0

References

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

Timeline

Published2020-08-08By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.