{"cve":"CVE-2026-50559","nvd":{"published":"2026-06-19T21:17:02.373","modified":"2026-10-25T23:10:00.167","status":"Modified","description":"Quarkus is a Java framework for building cloud-native applications. Prior to versions 3.37.0, 3.36.3, 3.33.2.1, 3.33.3, 3.27.4.1, 3.27.5, and 3.20.6.2, Quarkus HTTP path-based authorization policies can be bypassed using encoded semicolons (%3B) to smuggle matrix parameters past the security layer, and using encoded slashes (%2F) or backslashes (%5C) to access protected static resources. This is a distinct issue from CVE-2026-39852, which addressed only literal semicolon stripping. Versions 3.37.0, 3.36.3, 3.33.2.1, 3.33.3, 3.27.4.1, 3.27.5, and 3.20.6.2 contain a patch.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-287","CWE-863","CWE-551"],"references":["https://github.com/quarkusio/quarkus/security/advisories/GHSA-qcxp-gm7m-4j5v","https://access.redhat.com/errata/RHSA-2026:26017","https://access.redhat.com/errata/RHSA-2026:26018","https://access.redhat.com/errata/RHSA-2026:26194","https://access.redhat.com/errata/RHSA-2026:26586"],"products":["quarkus:quarkus"],"source":"nvd","synced_at":"2026-10-25T23:44:33.281319194+00:00"},"epss":{"cve":"CVE-2026-50559","score":0.01023,"percentile":0.63261,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-qcxp-gm7m-4j5v","url":"https://osv.dev/vulnerability/GHSA-qcxp-gm7m-4j5v","summary":"Quarkus: Authentication/Authorization Bypass via Advanced Path Normalization Vulnerabilities","modified":"2026-09-10T03:51:12.003468720Z","packages":[{"ecosystem":"Maven","name":"io.quarkus:quarkus-vertx-http","purl":"pkg:maven/io.quarkus/quarkus-vertx-http","ranges":["<3.20.6.2"],"fixed":["3.20.6.2"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-vertx-http","purl":"pkg:maven/io.quarkus/quarkus-vertx-http","ranges":[">=3.21.0.CR1 <3.27.4.1"],"fixed":["3.27.4.1"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-vertx-http","purl":"pkg:maven/io.quarkus/quarkus-vertx-http","ranges":[">=3.28.0.CR1 <3.33.2.1"],"fixed":["3.33.2.1"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-vertx-http","purl":"pkg:maven/io.quarkus/quarkus-vertx-http","ranges":[">=3.34.0.CR1 <3.36.3"],"fixed":["3.36.3"]},{"ecosystem":"Maven","name":"io.quarkus:quarkus-vertx-http","purl":"pkg:maven/io.quarkus/quarkus-vertx-http","ranges":[">=3.37.0.CR1 <3.37.0"],"fixed":["3.37.0"]}]}],"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."]}