Answer in brief
CVE-2026-89058 records a High severity (CVSS 7.4) vulnerability in Resteasy-core: resteasy: corsfilter reflects arbitrary origin with credentials under wildcard config. The current sources do not mark it as known exploited. The current feed maps Red Hat/candlepin (generic), Red Hat/dogtag-pki (generic), Red Hat/jackson-jaxrs-providers (generic), Red Hat/jboss-eap-7/eap74-els-openjdk11-openshift-rhel8 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Red Hat/candlepin (generic), Red Hat/dogtag-pki (generic), Red Hat/jackson-jaxrs-providers (generic), Red Hat/jboss-eap-7/eap74-els-openjdk11-openshift-rhel8 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Red Hat/candlepingeneric | * | Not reported |
| Red Hat/dogtag-pkigeneric | * | Not reported |
| Red Hat/jackson-jaxrs-providersgeneric | * | Not reported |
| Red Hat/jboss-eap-7/eap74-els-openjdk11-openshift-rhel8generic | * | Not reported |
| Red Hat/jboss-eap-7/eap74-els-openjdk17-openshift-rhel8generic | * | Not reported |
| Red Hat/jboss-eap-7/eap74-els-openjdk8-openshift-rhel8generic | * | Not reported |
| Red Hat/pki-coregeneric | * | Not reported |
| Red Hat/pki-core:10.6/pki-coregeneric | * | Not reported |
| Red Hat/redhat-pkigeneric | * | Not reported |
| Red Hat/redhat-pki:10/redhat-pkigeneric | * | Not reported |
| Red Hat/resteasygeneric | * | Not reported |
| Red Hat/RESTEasygeneric | >=0 <6.2.19.Final || >=7.0.0.Alpha1 <7.0.5.Final | 6.2.19.Final, 7.0.5.Final |
| Red Hat/resteasy-coregeneric | * | Not reported |
| Red Hat/resteasy-jaxrsgeneric | * | Not reported |
| Red Hat/rhbk/keycloak-rhel9-operatorgeneric | * | Not reported |
Published upstream
Sep 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 18, 2026
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.
Quoted source text, attributed separately from HOL analysis.