CVE-2026-86404Artemis-server: artemis-jms-client: artemis-core-client: undertow-core: wildfly-messaging-activemq-subsystem: artemis messaging handlers in red hat eap permit deserialization by default
- 8.8HighCVSS base score
- 0.70%Exploitation in 30 daysEPSS · top 46% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By redhat
Published
- 55 days later
· 55 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Awaiting Analysis | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.70% · top 46% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1.8.GA
- unaffected 2.40.0.redhat-00024 – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.40.0-8.redhat_00024.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:4.1.7-1.SP1_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.0.5-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:1.85.0-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:1.2.7-1.redhat_00002.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:801.8.0-1.GA_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:6.6.54-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:4.1.5-5.redhat_00008.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:3.0.22-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.18.9-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.18.9-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.18.9-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.18.9-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.18.9-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.18.9-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.18.9-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:4.0.5-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:4.0.7-4.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.1.0-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:3.6.3-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:5.0.31-1.SP2_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:3.1.0-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.2.0-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:7.4.0-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:3.0.1-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:5.1.0-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:4.0.11-2.SP1_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.25.4-1.redhat_00003.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:3.2.2-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:4.1.136-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:4.1.136-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:9.37.4-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:1.1.9-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:3.0.6-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.0.18-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.3.26-2.SP3_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:8.1.8-9.GA_redhat_00006.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.6.11-1.Final_redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:8.1.1-12.GA_redhat_00048.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:2.3.2-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- unaffected 0:3.0.6-1.redhat_00001.1.el10eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.40.0-8.redhat_00024.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:4.1.7-1.SP1_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.0.5-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:1.85.0-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:1.2.7-1.redhat_00002.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:801.8.0-1.GA_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:6.6.54-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:4.1.5-5.redhat_00008.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:3.0.22-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.18.9-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.18.9-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.18.9-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.18.9-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.18.9-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.18.9-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.18.9-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:4.0.5-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:4.0.7-4.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.1.0-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:3.6.3-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:5.0.31-1.SP2_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:3.1.0-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.2.0-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:7.4.0-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:3.0.1-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:5.1.0-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:4.0.11-2.SP1_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.25.4-1.redhat_00003.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:3.2.2-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:4.1.136-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:4.1.136-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:9.37.4-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:1.1.9-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:3.0.6-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.0.18-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.3.26-2.SP3_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:8.1.8-9.GA_redhat_00006.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.6.11-1.Final_redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:8.1.1-12.GA_redhat_00048.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:2.3.2-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- unaffected 0:3.0.6-1.redhat_00001.1.el8eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.40.0-8.redhat_00024.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:4.1.7-1.SP1_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.0.5-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:1.85.0-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:1.2.7-1.redhat_00002.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:801.8.0-1.GA_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:6.6.54-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:4.1.5-5.redhat_00008.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:3.0.22-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.18.9-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.18.9-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.18.9-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.18.9-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.18.9-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.18.9-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.18.9-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:4.0.5-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:4.0.7-4.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.1.0-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:3.6.3-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:5.0.31-1.SP2_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:3.1.0-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.2.0-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:7.4.0-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:3.0.1-1.Final_redhat_00001.1el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:5.1.0-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:4.0.11-2.SP1_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.25.4-1.redhat_00003.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:3.2.2-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:4.1.136-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:4.1.136-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:9.37.4-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:1.1.9-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:3.0.6-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.0.18-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.3.26-2.SP3_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:8.1.8-9.GA_redhat_00006.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.6.11-1.Final_redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:8.1.1-12.GA_redhat_00048.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:2.3.2-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- unaffected 0:3.0.6-1.redhat_00001.1.el9eap – < *
Red Hat · Red Hat AMQ Broker 7
All versions: unaffected
Red Hat · Red Hat build of Apache Camel 4 for Quarkus 3
All versions: unaffected
Red Hat · Red Hat build of Apache Camel for Spring Boot 4
All versions: unaffected
Red Hat · Red Hat build of Apache Camel for Spring Boot 4
All versions: unaffected
Red Hat · Red Hat build of Apache Camel for Spring Boot 4
All versions: unaffected
Red Hat · Red Hat JBoss Enterprise Application Platform 7
All versions: unaffected
Red Hat · Red Hat JBoss Enterprise Application Platform 7
All versions: affected
Red Hat · Red Hat JBoss Enterprise Application Platform 7
All versions: affected
Red Hat · Red Hat JBoss Enterprise Application Platform 7
All versions: affected
Red Hat · Red Hat JBoss Enterprise Application Platform 7
All versions: affected
Red Hat · Red Hat JBoss Enterprise Application Platform 8
All versions: affected
Red Hat · Red Hat JBoss Enterprise Application Platform 8
All versions: affected
Red Hat · Red Hat JBoss Enterprise Application Platform 8
All versions: affected
Red Hat · Red Hat JBoss Enterprise Application Platform 8
All versions: affected
What to do
Workaround: Configure a restrictive deserialization-allow-list on every pooled-connection-factory resource. For example, if your MDBs only expect to receive objects of type com.yourapp.OrderEvent, set the allow-list to "com.yourapp". This switches ObjectInputStreamWithClassLoader from "allow everything" to "deny by default, allow only listed classes." With this in place, even if an attacker injects a malicious ObjectMessage through any vector, the deserialization of gadget chain classes is blocked.
References
References6
- RHSA-2026:70228 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:70229 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:70230 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:70277 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-86404 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2477930 (opens in a new tab)issue-trackingx_refsource_REDHAT
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-72352 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-86404)Record last updated .