by Kastro
Paper/Archive/CVE-2026-53914

CVE-2026-53914

JetBrains Kotlin — In JetBrains Kotlin before 2.4.20 code execution was possible via unsafe deserialization in the build cache metadata

EPSS 0.3%CVSS 9.8
critical.is priorityof 100
35
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 26.5.265 × 205.3No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

In JetBrains Kotlin before 2.4.20 code execution was possible via unsafe deserialization in the build cache metadata

Affected

ProductAffectedFixed inSource
Kotlin< 2.4.202.4.20CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
JetBrains (CNA)6.7CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refjetbrains.com/privacy-security/issues-fixed