GitHub Advisoryadvisory · Maven
GHSA-r937-wjx7-w2jp JetBrains Kotlin: Unsafe Deserialization in Kotlin Build Cache Enables Code Execution
MEDIUM
Official page ↗
- Aliases
- CVE-2026-53914
- Ecosystem
- Maven
- Packages
- org.jetbrains.kotlin:kotlin-gradle-plugin
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L
- Weaknesses
- CWE-502
- Reviewed
- 2026-08-12
Affected packages
• Maven org.jetbrains.kotlin:kotlin-gradle-plugin: < 2.4.20-Beta1 → fixed in 2.4.20-Beta1
Description
In JetBrains Kotlin before 2.4.20 code execution was possible via unsafe deserialization in the build cache metadata
Related
Alias · CVE (1)
- CVE-2026-53914 In JetBrains Kotlin before 2.4.20 code execution was possible via unsafe deserialization in the build cache metadata vulnerability
Weakness · CWE (1)
- CWE-502 Deserialization of Untrusted Data weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-53914 advisory
- https://github.com/JetBrains/kotlin/commit/bf51df665b458fda7c3eaf436c4d88dc119d7ec6 web
- https://github.com/JetBrains/kotlin package
- https://github.com/JetBrains/kotlin/releases/tag/v2.4.20-Beta1 web
- https://www.jetbrains.com/privacy-security/issues-fixed web