SEPTEMBER 17, 2026
Live Feed
Back to database
Case File

CVE-2026-86404

HIGH · CVSS 8.8 EPSS 0.45%

Source: NVD + CISA KEV + EPSS · Published 2026-09-07 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

The vulnerability arises from EAP's Artemis deserialization configuration, which allows deserialization of all classes by default due to empty allow-list and block-list settings. This can lead to remote code execution, as untrusted data can be deserialized without proper validation. Organizations using EAP should prioritize addressing this issue to mitigate potential exploitation risks.

CVE
CVE-2026-86404
Severity
HIGH
CVSS
8.8
EPSS
0.45%

Original NVD Description

EAP's Artemis deserialization configuration permits deserialization by default. ObjectMessage.getObject() uses ObjectInputStreamWithClassLoader, which implements allow-list/block-list filtering via its checkSecurity()/isTrustedType() method. However, by default both allow-list and block-list are empty. When the allow-list is empty (size == 0), isTrustedType() returns true for ALL classes. This means all classes are deserializable by default.