{"cve":"CVE-2021-20289","nvd":{"published":"2021-03-26T17:15:13.217","modified":"2026-06-17T03:33:36.797","status":"Modified","description":"A flaw was found in RESTEasy in all versions of RESTEasy up to 4.6.0.Final. The endpoint class and method names are returned as part of the exception response when RESTEasy cannot convert one of the request URI path or query values to the matching JAX-RS resource method's parameter value. The highest threat from this vulnerability is to data confidentiality.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-209"],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=1935927","https://www.oracle.com/security-alerts/cpuapr2022.html","https://bugzilla.redhat.com/show_bug.cgi?id=1935927","https://www.oracle.com/security-alerts/cpuapr2022.html"],"products":["netapp:oncommand_insight","oracle:communications_cloud_native_core_console","quarkus:quarkus","redhat:resteasy"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2021-20289","score":0.014,"percentile":0.725,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-244r-fcj3-ghjq","url":"https://osv.dev/vulnerability/GHSA-244r-fcj3-ghjq","summary":"Exposure of class information in RESTEasy","modified":"2024-02-17T05:35:12.446645Z","packages":[{"ecosystem":"Maven","name":"org.jboss.resteasy:resteasy-core","purl":"pkg:maven/org.jboss.resteasy/resteasy-core","ranges":[">=4.6.0 <4.6.1"],"fixed":["4.6.1"]},{"ecosystem":"Maven","name":"org.jboss.resteasy:resteasy-core","purl":"pkg:maven/org.jboss.resteasy/resteasy-core","ranges":[">=4.0.0 <4.5.10"],"fixed":["4.5.10"]},{"ecosystem":"Maven","name":"org.jboss.resteasy:resteasy-core","purl":"pkg:maven/org.jboss.resteasy/resteasy-core","ranges":[">=3.0.0 <3.16.0"],"fixed":["3.16.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}