# Wildfly-elytron-realm-token: parameter injection in eap's elytron oauth2 CVE record · `CVE-2026-85511` - **Identifiers:** `CVE-2026-85511` - **State:** Confirmed - **Severity:** CVSS 4.2 Medium - **Critical:** No - **CNA:** redhat - **Weakness (CWE):** [CWE-290](https://cwe.mitre.org/data/definitions/290.html) - **Tags:** [Authentication bypass](https://agentprime.io/advisories/tag/auth-bypass.md) - **Technologies:** [Red Hat JBoss Enterprise Application Platform 8.1.8.GA](https://agentprime.io/advisories/technology/red-hat-jboss-enterprise-application-platform-8-1-8-ga.md) · [Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10](https://agentprime.io/advisories/technology/red-hat-jboss-enterprise-application-platform-8-1-for-rhel-10.md) · [Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8](https://agentprime.io/advisories/technology/red-hat-jboss-enterprise-application-platform-8-1-for-rhel-8.md) · [Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9](https://agentprime.io/advisories/technology/red-hat-jboss-enterprise-application-platform-8-1-for-rhel-9.md) · [Red Hat Data Grid 8](https://agentprime.io/advisories/technology/red-hat-data-grid-8.md) · [Red Hat Fuse 7](https://agentprime.io/advisories/technology/red-hat-fuse-7.md) · [Red Hat JBoss Enterprise Application Platform 7](https://agentprime.io/advisories/technology/red-hat-jboss-enterprise-application-platform-7.md) · [Red Hat JBoss Enterprise Application Platform Expansion Pack](https://agentprime.io/advisories/technology/red-hat-jboss-enterprise-application-platform-expansion-pack.md) · [Red Hat Single Sign-On 7](https://agentprime.io/advisories/technology/red-hat-single-sign-on-7.md) - **Published:** 18 Sept 2026 - **Updated:** 20 Oct 2026 - **Reviewed by a person:** No Published by the CVE Program (CNA: redhat) at 18 Sept 2026, 14:29 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. ## Affected products, as the CNA wrote them - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1.8.GA. - unaffected: `2.6.11.Final-redhat-00001 to before *` (rpm) - Other versions: affected - Package name: `org.wildfly.security/wildfly-elytron-realm-token` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.40.0-8.redhat_00024.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-activemq-artemis` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:4.1.7-1.SP1_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-apache-cxf` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.0.5-1.Final_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-artemis-wildfly-integration` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:1.85.0-1.redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-bouncycastle` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:1.2.7-1.redhat_00002.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-cryptacular` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:801.8.0-1.GA_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-eap-product-conf-parent` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:6.6.54-1.Final_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-hibernate` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:4.1.5-5.redhat_00008.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-httpcomponents-asyncclient` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:3.0.22-1.Final_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-ironjacamar` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.18.9-1.redhat_00003.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jackson-annotations` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.18.9-1.redhat_00003.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jackson-core` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.18.9-1.redhat_00003.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jackson-databind` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.18.9-1.redhat_00003.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jackson-dataformats-text` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.18.9-1.redhat_00003.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jackson-jaxrs-providers` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.18.9-1.redhat_00003.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jackson-modules-base` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.18.9-1.redhat_00003.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jackson-modules-java8` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:4.0.5-1.redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jakarta-xml-bind-api` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:4.0.7-4.redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jaxb` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.1.0-1.redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jaxbintros` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:3.6.3-1.Final_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jboss-logging` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:5.0.31-1.SP2_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jboss-remoting` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:3.1.0-1.Final_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jbossws-api` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.2.0-1.Final_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jbossws-common-tools` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:7.4.0-1.Final_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jbossws-cxf` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:3.0.1-1.Final_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jbossws-jaxws-undertow-httpspi` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:5.1.0-1.Final_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jbossws-spi` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:4.0.11-2.SP1_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-jsf-impl` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.25.4-1.redhat_00003.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-log4j` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:3.2.2-1.redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-neethi` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:4.1.136-1.Final_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-netty` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:4.1.136-1.Final_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-netty-transport-native-epoll` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:9.37.4-1.redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-nimbus-jose-jwt` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:1.1.9-1.redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-parsson` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:3.0.6-1.redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-saaj-impl` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.0.18-1.redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-slf4j` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.3.26-2.SP3_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-undertow` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:8.1.8-9.GA_redhat_00006.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-wildfly` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:2.6.11-1.Final_redhat_00001.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-wildfly-elytron` - Collection: `https://access.redhat.com/downloads/content/package-browser/` - Vendor: Red Hat. Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10. - unaffected: `0:8.1.1-12.GA_redhat_00048.1.el10eap to before *` (rpm) - Other versions: affected - Package name: `eap8-wildfly-javadocs` - Collection: `https://access.redhat.com/downloads/content/package-browser/` And 89 more products. The full list is on the CVE record: ## Not analysed yet We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter. ## Severity and exploitation - 4.2 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N`, from CNA (redhat) - **CISA KEV:** Not listed. - **EPSS:** 0.0028, the 20th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline This record came from the full history of the CVE Program, published 18 Sept 2026. New records show when each source confirmed them. ## Sources - [CVE List: CVE-2026-85511](https://www.cve.org/CVERecord?id=CVE-2026-85511) - [NVD: CVE-2026-85511](https://nvd.nist.gov/vuln/detail/CVE-2026-85511) ### References from the CNA - (vendor-advisory, redhat) - (vendor-advisory, redhat) - (vendor-advisory, redhat) - (vendor-advisory, redhat) - (vdb-entry, redhat) - (issue-tracking, redhat) Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description. ## Check whether this affects you This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run. - With the agentprime MCP server (), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: - As JSON: - Everything that needs attention now: --- The web page: . Everything for agents: .