{
  "threat_severity" : "Important",
  "public_date" : "2026-08-05T02:02:00Z",
  "bugzilla" : {
    "description" : "keycloak-services: keycloak-services: Authorization bypass via unnormalized URI matching in PathMatcher",
    "id" : "2499593",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2499593"
  },
  "cvss3" : {
    "cvss3_base_score" : "8.1",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
    "status" : "verified"
  },
  "details" : [ "A flaw was found in Keycloak's Authorization Services. The component responsible for matching request paths to security policies (PathMatcher) does not properly normalize URIs before comparison. By adding extra characters like a trailing slash or matrix parameters to a URL, an attacker can trick the system into applying a less restrictive security policy than intended. This allows an authenticated user to access administrative or restricted areas they should not have permission to see.", "A flaw was found in Keycloak's Authorization Services. The component responsible for matching request paths to security policies (PathMatcher) does not properly normalize URIs before comparison. By adding extra characters like a trailing slash or matrix parameters to a URL, an attacker can trick the system into applying a less restrictive security policy than intended. This allows an authenticated user to access administrative or restricted areas they should not have permission to see." ],
  "statement" : "Red Hat Product Security has rated this vulnerability as having a security impact of Important. This issue allows authenticated users to bypass fine-grained authorization controls by exploiting a lack of URI normalization in the PathMatcher utility. While authentication is required, the ability to bypass explicit \"Deny\" policies and access restricted resources poses a significant risk to the confidentiality and integrity of the protected system.",
  "acknowledgement" : "Red Hat would like to thank Sanil Dulal for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat build of Keycloak 26.4",
    "release_date" : "2026-08-05T00:00:00Z",
    "advisory" : "RHSA-2026:50847",
    "cpe" : "cpe:/a:redhat:build_keycloak:26.4::el9",
    "package" : "rhbk/keycloak-operator-bundle:26.4.14-1"
  }, {
    "product_name" : "Red Hat build of Keycloak 26.4",
    "release_date" : "2026-08-05T00:00:00Z",
    "advisory" : "RHSA-2026:50847",
    "cpe" : "cpe:/a:redhat:build_keycloak:26.4::el9",
    "package" : "rhbk/keycloak-rhel9:26.4-22"
  }, {
    "product_name" : "Red Hat build of Keycloak 26.4",
    "release_date" : "2026-08-05T00:00:00Z",
    "advisory" : "RHSA-2026:50847",
    "cpe" : "cpe:/a:redhat:build_keycloak:26.4::el9",
    "package" : "rhbk/keycloak-rhel9-operator:26.4-22"
  }, {
    "product_name" : "Red Hat build of Keycloak 26.4.14",
    "release_date" : "2026-08-05T00:00:00Z",
    "advisory" : "RHSA-2026:50846",
    "cpe" : "cpe:/a:redhat:build_keycloak:26.4::el9",
    "package" : "keycloak-services"
  }, {
    "product_name" : "Red Hat build of Keycloak 26.4.14",
    "release_date" : "2026-08-05T00:00:00Z",
    "advisory" : "RHSA-2026:50846",
    "cpe" : "cpe:/a:redhat:build_keycloak:26.4::el9",
    "package" : "rhbk-openshift-rhel9/rhbk-openshift-rhel9"
  }, {
    "product_name" : "Red Hat build of Keycloak 26.6",
    "release_date" : "2026-08-05T00:00:00Z",
    "advisory" : "RHSA-2026:50849",
    "cpe" : "cpe:/a:redhat:build_keycloak:26.6::el9",
    "package" : "rhbk/keycloak-operator-bundle:26.6.5-1"
  }, {
    "product_name" : "Red Hat build of Keycloak 26.6",
    "release_date" : "2026-08-05T00:00:00Z",
    "advisory" : "RHSA-2026:50849",
    "cpe" : "cpe:/a:redhat:build_keycloak:26.6::el9",
    "package" : "rhbk/keycloak-rhel9:26.6-11"
  }, {
    "product_name" : "Red Hat build of Keycloak 26.6",
    "release_date" : "2026-08-05T00:00:00Z",
    "advisory" : "RHSA-2026:50849",
    "cpe" : "cpe:/a:redhat:build_keycloak:26.6::el9",
    "package" : "rhbk/keycloak-rhel9-operator:26.6-11"
  }, {
    "product_name" : "Red Hat build of Keycloak 26.6.5",
    "release_date" : "2026-08-05T00:00:00Z",
    "advisory" : "RHSA-2026:50848",
    "cpe" : "cpe:/a:redhat:build_keycloak:26.6::el9",
    "package" : "keycloak-services"
  }, {
    "product_name" : "Red Hat build of Keycloak 26.6.5",
    "release_date" : "2026-08-05T00:00:00Z",
    "advisory" : "RHSA-2026:50848",
    "cpe" : "cpe:/a:redhat:build_keycloak:26.6::el9",
    "package" : "rhbk/keycloak-rhel9"
  }, {
    "product_name" : "Red Hat build of Keycloak 26.6.5",
    "release_date" : "2026-08-05T00:00:00Z",
    "advisory" : "RHSA-2026:50848",
    "cpe" : "cpe:/a:redhat:build_keycloak:26.6::el9",
    "package" : "rhbk-openshift-rhel9/rhbk-openshift-rhel9"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Data Grid 8",
    "fix_state" : "Affected",
    "package_name" : "keycloak-services",
    "cpe" : "cpe:/a:redhat:jboss_data_grid:8"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Application Platform Expansion Pack",
    "fix_state" : "Not affected",
    "package_name" : "keycloak-services",
    "cpe" : "cpe:/a:redhat:jbosseapxp"
  }, {
    "product_name" : "Red Hat Single Sign-On 7",
    "fix_state" : "Fix deferred",
    "package_name" : "keycloak-services",
    "cpe" : "cpe:/a:redhat:red_hat_single_sign_on:7"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-15573\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-15573" ],
  "name" : "CVE-2026-15573",
  "csaw" : false
}