CVE-2026-53914: CWE-502 in JetBrains Kotlin
In JetBrains Kotlin before 2.4.20 code execution was possible via unsafe deserialization in the build cache metadata
AI Analysis
Technical Summary
CVE-2026-53914 is a deserialization vulnerability (CWE-502) in JetBrains Kotlin versions prior to 2.4.20. It allows an attacker with local high privileges to execute code through unsafe deserialization of build cache metadata. The vulnerability has a CVSS 3.1 score of 6.7, reflecting a medium severity with high attack complexity and privileges required. No vendor advisory or patch information is currently available to confirm remediation status.
Potential Impact
Successful exploitation could lead to code execution on the affected system, compromising confidentiality (high), integrity (low), and availability (low). The attack requires local access with high privileges and does not require user interaction. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict local access to trusted users and monitor for suspicious activity related to build cache metadata handling.
CVE-2026-53914: CWE-502 in JetBrains Kotlin
Description
In JetBrains Kotlin before 2.4.20 code execution was possible via unsafe deserialization in the build cache metadata
CVSS v3.1
Score 6.7medium
Affected software
pkg:maven/org.jetbrains.kotlin/kotlin-compilerRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-53914 is a deserialization vulnerability (CWE-502) in JetBrains Kotlin versions prior to 2.4.20. It allows an attacker with local high privileges to execute code through unsafe deserialization of build cache metadata. The vulnerability has a CVSS 3.1 score of 6.7, reflecting a medium severity with high attack complexity and privileges required. No vendor advisory or patch information is currently available to confirm remediation status.
Potential Impact
Successful exploitation could lead to code execution on the affected system, compromising confidentiality (high), integrity (low), and availability (low). The attack requires local access with high privileges and does not require user interaction. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict local access to trusted users and monitor for suspicious activity related to build cache metadata handling.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-06-11T13:00:42.498Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3e7d61cef61ccff96cd4ee
Added to database: 06/26/2026, 13:23:45 UTC
Last enriched: 07/03/2026, 22:34:41 UTC
Last updated: 08/10/2026, 12:41:12 UTC
Views: 733
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