{"cve":"CVE-2023-4853","nvd":{"published":"2023-09-20T10:15:14.947","modified":"2026-08-04T18:16:39.440","status":"Modified","description":"A flaw was found in Quarkus where HTTP security policies are not sanitizing certain character permutations correctly when accepting requests, resulting in incorrect evaluation of permissions. This issue could allow an attacker to bypass the security policy altogether, resulting in unauthorized endpoint access and possibly a denial of service.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1},"cwes":["CWE-863","CWE-148"],"references":["https://access.redhat.com/errata/RHSA-2023:5170","https://access.redhat.com/errata/RHSA-2023:5310","https://access.redhat.com/errata/RHSA-2023:5337","https://access.redhat.com/errata/RHSA-2023:5446","https://access.redhat.com/errata/RHSA-2023:5479"],"products":["quarkus:quarkus","redhat:build_of_optaplanner","redhat:build_of_quarkus","redhat:decision_manager","redhat:integration_camel_k","redhat:integration_camel_quarkus","redhat:integration_service_registry","redhat:jboss_middleware","redhat:jboss_middleware_text-only_advisories","redhat:openshift_container_platform","redhat:openshift_serverless","redhat:process_automation_manager"],"source":"nvd","synced_at":"2026-10-19T21:39:24.235896374+00:00"},"epss":{"cve":"CVE-2023-4853","score":0.01449,"percentile":0.73361,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-4f4r-wgv2-jjvg","url":"https://osv.dev/vulnerability/GHSA-4f4r-wgv2-jjvg","summary":"Quarkus HTTP vulnerable to incorrect evaluation of permissions","modified":"2024-03-13T05:36:04.528727Z","packages":[{"ecosystem":"Maven","name":"io.quarkus:quarkus-vertx-http","purl":"pkg:maven/io.quarkus/quarkus-vertx-http","ranges":["<2.16.11.Final"],"fixed":["2.16.11.Final"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-vertx-http","purl":"pkg:maven/io.quarkus/quarkus-vertx-http","ranges":[">=3.0.0 <3.2.6.Final"],"fixed":["3.2.6.Final"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-vertx-http","purl":"pkg:maven/io.quarkus/quarkus-vertx-http","ranges":[">=3.3.0 <3.3.3"],"fixed":["3.3.3"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-undertow","purl":"pkg:maven/io.quarkus/quarkus-undertow","ranges":["<2.16.11.Final"],"fixed":["2.16.11.Final"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-undertow","purl":"pkg:maven/io.quarkus/quarkus-undertow","ranges":[">=3.0.0 <3.2.6.Final"],"fixed":["3.2.6.Final"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-undertow","purl":"pkg:maven/io.quarkus/quarkus-undertow","ranges":[">=3.3.0 <3.3.3"],"fixed":["3.3.3"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-csrf-reactive","purl":"pkg:maven/io.quarkus/quarkus-csrf-reactive","ranges":["<2.16.11.Final"],"fixed":["2.16.11.Final"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-csrf-reactive","purl":"pkg:maven/io.quarkus/quarkus-csrf-reactive","ranges":[">=3.0.0 <3.2.6.Final"],"fixed":["3.2.6.Final"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-csrf-reactive","purl":"pkg:maven/io.quarkus/quarkus-csrf-reactive","ranges":[">=3.3.0 <3.3.3"],"fixed":["3.3.3"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-keycloak-authorization","purl":"pkg:maven/io.quarkus/quarkus-keycloak-authorization","ranges":["<2.16.11.Final"],"fixed":["2.16.11.Final"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-keycloak-authorization","purl":"pkg:maven/io.quarkus/quarkus-keycloak-authorization","ranges":[">=3.0.0 <3.2.6.Final"],"fixed":["3.2.6.Final"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-keycloak-authorization","purl":"pkg:maven/io.quarkus/quarkus-keycloak-authorization","ranges":[">=3.3.0 <3.3.3"],"fixed":["3.3.3"]}]}],"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."]}