CVE-2026-89058Resteasy-core: resteasy: corsfilter reflects arbitrary origin with credentials under wildcard config
Updated under an hour ago ()
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It affects Red Hat RESTEasy and 12 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.4 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
- Weakness (CWE)
- CWE-346, CWE-942
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat RESTEasy red_hat:resteasy (from the name) | before 6.2.19.Final; from 7.0.0.Alpha1 before 7.0.5.Final | CNA record |
Red Hat Red Hat build of Quarkus 3.27.6.redhat redhat:quarkus | from 6.2.19.Final-redhat-00003 not affected | CNA record |
Red Hat Red Hat build of Apache Camel 4 for Quarkus 3 redhat:camel_quarkus | 3 | CNA record |
Red Hat Red Hat build of Apicurio Registry 3 redhat:apicurio_registry | 3 | CNA record |
Red Hat Red Hat build of Debezium 3 redhat:debezium | 3 | CNA record |
Red Hat Red Hat Build of Keycloak redhat:build_keycloak | All versions | CNA record |
Red Hat Red Hat Certificate System 10 redhat:certificate_system | 10 | CNA record |
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | 10 | CNA record |
Red Hat Red Hat Fuse 7 redhat:jboss_fuse | 7 | CNA record |
Red Hat Red Hat JBoss Enterprise Application Platform 7 redhat:jboss_enterprise_application_platform | 7 | CNA record |
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack redhat:jbosseapxp | All versions | CNA record |
Red Hat Red Hat Satellite 6 redhat:satellite | 6 | CNA record |
Red Hat Red Hat Single Sign-On 7 redhat:red_hat_single_sign_on | 7 | CNA record |
References
- https://access.redhat.com/errata/RHSA-2026:83082vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:83520vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-89058vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2519775issue-tracking, x-refsource-redhat
- https://github.com/resteasy/resteasy/commit/efeb2b7
- https://github.com/resteasy/resteasy/security/advisories/GHSA-972r-f3fv-whm3
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.