CVE-2026-539146.7MediumCWE-502

CVE-2026-53914: JetBrains Kotlin vulnerability

JetBrains · Kotlin

Fixed in 2.4.20 · Affected: JetBrains Kotlin before 2.4.20 · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.3%probability of exploitation in the next 30 days

29th percentile

050100

Higher than 29% of scored CVEs

6.7MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

JetBrains · Kotlinbefore 2.4.20

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Deserialization of Untrusted Data · Deserialization and Object Injection
Vendor: JetBrains
Published: June 2026
Band: Unlikely (under 1%), June 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-53914 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.