{"id":"CVE-2026-50559","title":"Quarkus is a Java framework for building cloud-native applications","summary":"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 semicolo…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-287","CWE-863","CWE-551"],"vendor":"quarkus","product":"quarkus","affected":["quarkus < 3.20.6.2","quarkus >= 3.21.0, < 3.27.4.1","quarkus >= 3.28.0, < 3.33.2.1","quarkus >= 3.34.0, < 3.36.3"],"patched":["quarkus 3.36.3"],"published":"2026-06-19","updated":"2026-07-03","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-50559","references":[{"url":"https://github.com/quarkusio/quarkus/security/advisories/GHSA-qcxp-gm7m-4j5v","label":"security-advisories@github.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:26017","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:26018","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:26194","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:26586","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:34608","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/security/cve/CVE-2026-50559","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2486959","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50559.json","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-50559"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50559"},{"url":"https://access.redhat.com/errata/RHSA-2026:48151"},{"url":"https://access.redhat.com/errata/RHSA-2026:84734"},{"url":"https://access.redhat.com/errata/RHSA-2026:36820"},{"url":"https://access.redhat.com/errata/RHSA-2026:54435"}],"tags":["nvd","csaf","vex","red-hat"],"epss":0.01023,"epssPercentile":0.63333,"ingestedAt":"2026-07-03T14:03:37.110Z","slug":"CVE-2026-50559","body":"## Overview\n\nQuarkus 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.\n\n## Affected\n\n- `quarkus < 3.20.6.2`\n- `quarkus >= 3.21.0, < 3.27.4.1`\n- `quarkus >= 3.28.0, < 3.33.2.1`\n- `quarkus >= 3.34.0, < 3.36.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `quarkus 3.36.3`\n\n## Vendor advisories\n\n- **RHSA-2026:48151** · Red Hat · fixed in: Cryostat 4 on RHEL 9 · released 2026-07-29 · [advisory](https://access.redhat.com/errata/RHSA-2026:48151)\n- **RHSA-2026:26586** · Red Hat · fixed in: Red Hat Build of Apache Camel 3.33.2.SP1 · released 2026-06-17 · [advisory](https://access.redhat.com/errata/RHSA-2026:26586)\n- **RHSA-2026:84734** · Red Hat · fixed in: Red Hat OpenShift AI 3.4 · released 2026-10-19 · [advisory](https://access.redhat.com/errata/RHSA-2026:84734)\n- **RHSA-2026:36820** · Red Hat · fixed in: Red Hat OpenShift Dev Spaces 3.29 · released 2026-07-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:36820)\n- **RHSA-2026:26194** · Red Hat · fixed in: Red Hat build of Quarkus 3.20.6.SP2 · released 2026-06-17 · [advisory](https://access.redhat.com/errata/RHSA-2026:26194)\n- **RHSA-2026:26018** · Red Hat · fixed in: Red Hat build of Quarkus 3.27.4.SP1 · released 2026-06-17 · [advisory](https://access.redhat.com/errata/RHSA-2026:26018)\n- **RHSA-2026:26017** · Red Hat · fixed in: Red Hat build of Quarkus 3.33.2.SP1 · released 2026-06-17 · [advisory](https://access.redhat.com/errata/RHSA-2026:26017)\n- **RHSA-2026:34608** · Red Hat · fixed in: Streams for Apache Kafka 2.9.4 · released 2026-07-02 · [advisory](https://access.redhat.com/errata/RHSA-2026:34608)\n- **RHSA-2026:54435** · Red Hat · fixed in: Streams for Apache Kafka 3.2.1 · released 2026-08-12 · [advisory](https://access.redhat.com/errata/RHSA-2026:54435)\n- **Red Hat VEX** · Important · affected: OpenShift Serverless, Red Hat build of Apache Camel - HawtIO 4, Red Hat build of Apache Camel 4 for Quarkus 3, Red Hat build of Debezium 3, Red Hat Fuse 7 · no fix planned: Red Hat build of Debezium 3, Red Hat Fuse 7, OpenShift Serverless, Red Hat build of Apache Camel - HawtIO 4, … · updated 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50559.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}