Medium, CVSS 6.7MavenPublished
JetBrains Kotlin: Unsafe Deserialization in Kotlin Build Cache Enables Code Execution
CVE-2026-53914 · GHSA-r937-wjx7-w2jp
- Affected
- Maven org.jetbrains.kotlin:kotlin-gradle-plugin < 2.4.20-Beta1
- Fixed in
- 2.4.20-Beta1· Vendor fix available
- Issue
- In JetBrains Kotlin before 2.4.20 code execution was possible via unsafe deserialization in the build cache metadata
Recommended action: Upgrade to 2.4.20-Beta1 (pre-release) or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.