HIGHVulnerability
CVE-2026-86404
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.
Properties
- severity
- HIGH
- score
- 8.8
- cve_id
- CVE-2026-86404
- signal_observed_at
- 2026-09-17T21:31:52+00:00
- vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- published_at
- 2026-09-07T12:17:21.840
- last_modified
- 2026-09-17T19:17:05.640
Related Entities (2)
HAS_WEAKNESS (1)
→[Weakness]Deserialization of Untrusted Data
DESCRIBED_BY (1)
→[Source]NVD
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