CVE-2026-89058— Resteasy-core: resteasy: corsfilter reflects arbitrary origin with credentials under wildcard config
Quick assessment
Affected
Red Hat
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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-orig
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I. Basic Information for CVE-2026-89058
Vulnerability Information
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Vulnerability Title
Resteasy-core: resteasy: corsfilter reflects arbitrary origin with credentials under wildcard config
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | - | 0 ~ 6.2.19.Final | - |
|
| Red Hat | Red Hat build of Apache Camel 4 for Quarkus 3 | - |
cpe:/a:redhat:camel_quarkus:3
|
|
| Red Hat | Red Hat build of Apicurio Registry 3 | - |
cpe:/a:redhat:apicurio_registry:3
|
|
| Red Hat | Red Hat build of Debezium 3 | - |
cpe:/a:redhat:debezium:3
|
|
| Red Hat | Red Hat Build of Keycloak | - |
cpe:/a:redhat:build_keycloak:
|
|
| Red Hat | Red Hat Build of Keycloak | - |
cpe:/a:redhat:build_keycloak:
|
|
| Red Hat | Red Hat build of Quarkus | - |
cpe:/a:redhat:quarkus:3
|
|
| Red Hat | Red Hat Certificate System 10 | - |
cpe:/a:redhat:certificate_system:10
|
|
| Red Hat | Red Hat Certificate System 11 | - |
cpe:/a:redhat:certificate_system:11
|
|
| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Fuse 7 | - |
cpe:/a:redhat:jboss_fuse:7
|
|
| Red Hat | Red Hat Fuse 7 | - |
cpe:/a:redhat:jboss_fuse:7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | - |
cpe:/a:redhat:jboss_enterprise_application_platform:7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | - |
cpe:/a:redhat:jboss_enterprise_application_platform:7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | - |
cpe:/a:redhat:jboss_enterprise_application_platform:7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | - |
cpe:/a:redhat:jboss_enterprise_application_platform:7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 8 | - |
cpe:/a:redhat:jboss_enterprise_application_platform:8
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | - |
cpe:/a:redhat:jbosseapxp
|
|
| Red Hat | Red Hat Satellite 6 | - |
cpe:/a:redhat:satellite:6
|
|
| Red Hat | Red Hat Single Sign-On 7 | - |
cpe:/a:redhat:red_hat_single_sign_on:7
|
|
II. Public POCs for CVE-2026-89058
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2026-89058 (1)
Vendor Advisories for CVE-2026-89058 (2)
Other References for CVE-2026-89058 (1)
Same Patch Batch · Red Hat · 2026-09-18 · 37 CVEs total
| CVE-2026-93569 | 8.2 HIGH | Io.netty/netty-codec-http2: http/1 absolute-form host mismatch is translated to http/2 :au |
| CVE-2026-93565 | 7.5 HIGH | Io.netty/netty-codec-http: netty rtspdecoder method-token smuggling via trailing control b |
| CVE-2026-89059 | 7.5 HIGH | Resteasy-core: resteasy: iioimageprovider unbounded image decode (decompression-bomb dos) |
| CVE-2026-93494 | 7.5 HIGH | Io.netty/netty-codec-stomp: netty: bytebuf leak in stompsubframedecoder when a frame body |
| CVE-2026-87743 | 7.5 HIGH | Quarkus-vertx-http: authorization bypass via path normalization discrepancy in quarkus htt |
| CVE-2026-93575 | 7.5 HIGH | Io.netty/netty-codec-mqtt: netty: resource exhaustion in mqttdecoder |
| CVE-2026-93572 | 7.5 HIGH | Io.netty/netty-codec-redis: netty: redisarrayaggregator nested resp headers multiply patch |
| CVE-2026-93563 | 7.5 HIGH | Io.netty/netty-codec-smtp: netty: unbounded multi-line response accumulation in smtprespon |
| CVE-2026-93488 | 7.5 HIGH | Io.netty/netty-codec-http: netty: denial of service via unbounded concurrent spdy streams |
| CVE-2026-93491 | 7.5 HIGH | Io.netty/netty-codec-http: netty: denial of service via unbounded httpservercodec http/1.1 |
| CVE-2026-93560 | 7.5 HIGH | Io.netty/netty-codec-stomp: netty: stomp codec content-length long-to-int truncation cause |
| CVE-2026-93558 | 7.5 HIGH | Io.netty/netty-codec-http: netty: unbounded per-connection queue growth in websocketserver |
| CVE-2026-93564 | 7.5 HIGH | Io.netty/netty-codec-haproxy: netty: haproxy proxy-v2 nested-tlv grandchild bytebuf refere |
| CVE-2026-93567 | 7.5 HIGH | Io.netty/netty-codec-http2: http/1 authority-form connect is translated to malformed http/ |
| CVE-2026-91149 | 7.5 HIGH | Cockpit: cockpit: denial of service via unbounded connection thread spawning |
| CVE-2026-93576 | 7.5 HIGH | Io.netty/netty-codec-smtp: netty netty-codec-smtp — smtp command-name field is not crlf-va |
| CVE-2026-93568 | 7.5 HIGH | Io.netty/netty-codec-http2: io.netty/netty-codec-http3: netty: http/2 and http/3 extended |
| CVE-2026-81627 | 6.7 MEDIUM | Qemu-kvm: vapic writable rom alias can escape the option-rom window and expose locked smra |
| CVE-2026-93566 | 6.5 MEDIUM | Io.netty/netty-codec-http: netty: http request smuggling due to control characters in the |
| CVE-2026-93579 | 6.5 MEDIUM | Io.netty/netty-codec-http2: netty: http/2 header field values are not validated by default |
Showing top 20 of 37 CVEs. View all on vendor page → →
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