CVE-2026-53914

EUVD-2026-39659
In JetBrains Kotlin before 2.4.20 code execution was possible via unsafe deserialization in the build cache metadata
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
JetBrainsCNA
6.7 MEDIUM
LOCAL
HIGH
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
jetbrainskotlin
𝑥
< 2.4.20
CNA
Common Weakness Enumeration
References
https://www.jetbrains.com/privacy-security/issues-fixed/