6.7
MEDIUM
CVSS 3.1
CVE-2026-53914
JetBrains Kotlin Unsafe Deserialization
Overview
Description
In JetBrains Kotlin before 2.4.20 code execution was possible via unsafe deserialization in the build cache metadata
Details
INFO
Published Date :
June 26, 2026, 1:01 p.m.
Last Modified :
June 26, 2026, 1:01 p.m.
Remotely Exploit :
No
Source :
JetBrains
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 547ada31-17d8-4964-bc5f-1b8238ba8014 | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE |
Solution
Update Kotlin to a patched version to fix unsafe deserialization in build cache metadata.
- Update Kotlin to version 2.4.20 or later.
- Ensure build cache metadata is handled securely.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-53914 vulnerability anywhere in the article.
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.