CVE-2020-15824

In JetBrains Kotlin before 1.4.0, there is a script-cache privilege escalation vulnerability due...

8.8 High

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.88%Up 0.4 points since Apr 14, 2021

What each source reports

NVD Score used 8.8

Record: CVE-2020-15824
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 6.5 MediumAV:N/AC:L/Au:S/C:P/I:P/A:P
Weakness: CWE-269
Updated: 2026-11-02

CVE List No score

Record: CVE-2020-15824
Updated: 2026-11-02

EUVDEUVD-2020-7806 No score

Record: EUVD-2020-7806
Updated: 2026-11-03

GitHub AdvisoriesGHSA-vhcp-vwq7-69fw No score

In JetBrains Kotlin before 1.4.0, there is a script-cache privilege escalation vulnerability due...

In JetBrains Kotlin before 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.

Record: GHSA-vhcp-vwq7-69fw
Weakness: CWE-269
Updated: 2026-11-02

OSV 8.8

Record: CVE-2020-15824
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2020-15824 8.8

Record: UBUNTU-CVE-2020-15824
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`kotlin` Ubuntu:22.04:LTS	All versions, plus listed versions 1.3.31+~1.0.1+~0.11.12-2	None known
`kotlin` Ubuntu:24.04:LTS	All versions, plus listed versions 1.3.31+ds1-1build51.3.31+ds1-1ubuntu1	None known
`kotlin` Ubuntu:25.10	All versions, plus listed versions 1.3.31+ds1-21.3.31+ds1-3	None known
`kotlin` Ubuntu:26.10	All versions, plus listed versions 1.3.31+ds1-3ubuntu11.3.31+ds1-4	None known
`kotlin` Ubuntu:26.04:LTS	All versions, plus listed versions 1.3.31+ds1-31.3.31+ds1-3ubuntu1	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-15824 is a high vulnerability (CVSS 8.8) in Jetbrains Kotlin, published August 8, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.88%, the 79th percentile. No source names a fixed version.

References

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