Description
A flaw was found in RESTEasy's CorsFilter, which, when configured to allow all origins ("*"), reflects the request's Origin header back in the Access-Control-Allow-Origin response together with Access-Control-Allow-Credentials: true. This permissive cross-origin policy allows a malicious website to make credentialed cross-origin requests and read authenticated responses from a victim's session, resulting in a loss of confidentiality.
No analysis available yet.
Remediation
No remediation available yet.
Tracking
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Advisories
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References
History
Fri, 18 Sep 2026 09:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat
Redhat apicurio Registry Redhat build Keycloak Redhat camel Quarkus Redhat certificate System Redhat debezium Redhat enterprise Linux Redhat jboss Enterprise Application Platform Redhat jboss Fuse Redhat jbosseapxp Redhat quarkus Redhat red Hat Single Sign On Redhat satellite |
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| CPEs | cpe:/a:redhat:apicurio_registry:3 cpe:/a:redhat:build_keycloak: cpe:/a:redhat:camel_quarkus:3 cpe:/a:redhat:certificate_system:10 cpe:/a:redhat:certificate_system:11 cpe:/a:redhat:debezium:3 cpe:/a:redhat:jboss_enterprise_application_platform:7 cpe:/a:redhat:jboss_enterprise_application_platform:8 cpe:/a:redhat:jboss_fuse:7 cpe:/a:redhat:jbosseapxp cpe:/a:redhat:quarkus:3 cpe:/a:redhat:red_hat_single_sign_on:7 cpe:/a:redhat:satellite:6 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat apicurio Registry Redhat build Keycloak Redhat camel Quarkus Redhat certificate System Redhat debezium Redhat enterprise Linux Redhat jboss Enterprise Application Platform Redhat jboss Fuse Redhat jbosseapxp Redhat quarkus Redhat red Hat Single Sign On Redhat satellite |
|
| References |
|
Fri, 18 Sep 2026 07:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in RESTEasy's CorsFilter, which, when configured to allow all origins ("*"), reflects the request's Origin header back in the Access-Control-Allow-Origin response together with Access-Control-Allow-Credentials: true. This permissive cross-origin policy allows a malicious website to make credentialed cross-origin requests and read authenticated responses from a victim's session, resulting in a loss of confidentiality. | |
| Title | Resteasy-core: resteasy: corsfilter reflects arbitrary origin with credentials under wildcard config | |
| References |
| |
| Metrics |
cvssV3_1
|
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-09-18T09:19:20.402Z
Reserved: 2026-09-10T18:20:52.114Z
Link: CVE-2026-89058
No data.
Status : Received
Published: 2026-09-18T08:17:01.653
Modified: 2026-09-18T10:17:07.850
Link: CVE-2026-89058
No data.
OpenCVE Enrichment
No data.
Weaknesses
No weakness.