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Vulnerability record · CVE-2026-53914 · published 26 June 2026

CVE-2026-53914: Jetbrains kotlin deserialization of untrusted data vulnerability

Jetbrains · Kotlin

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

9.8 CVSS 3.1 Critical EPSS 0.33% · top 76.0% CWE-502 · Deserialization of untrusted data
9.8CVSS 3.1 base score
0.33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
27 Jun 2026Last modified by NVD

Description

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.jetbrains.com/privacy-security/issues-fixed/ Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-53914), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.