{
  "threat_severity" : "Moderate",
  "public_date" : "2026-04-06T12:34:00Z",
  "bugzilla" : {
    "description" : "org.keycloak.forms.login: keycloak: Keycloak: Arbitrary code execution via Stored Cross-Site Scripting (XSS) in organization selection login page",
    "id" : "2455325",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2455325"
  },
  "cvss3" : {
    "cvss3_base_score" : "6.9",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N",
    "status" : "draft"
  },
  "cwe" : "CWE-79",
  "details" : [ "A flaw was found in Keycloak, specifically in the organization selection login page. A remote attacker with `manage-realm` or `manage-organizations` administrative privileges can exploit a Stored Cross-Site Scripting (XSS) vulnerability. This flaw occurs because the `organization.alias` is placed into an inline JavaScript `onclick` handler, allowing a crafted JavaScript payload to execute in a user's browser when they view the login page. Successful exploitation enables arbitrary JavaScript execution, potentially leading to session theft, unauthorized account actions, or further attacks against users of the affected realm." ],
  "statement" : "This vulnerability has Moderate impact. A Stored Cross-Site Scripting (XSS) flaw in the organization selection login page of Red Hat Build of Keycloak (RHBK) allows an attacker with `manage-realm` or `manage-organizations` privileges to inject a crafted JavaScript payload. This payload executes in the context of a user's browser when the login page is viewed, potentially leading to session theft or further attacks.",
  "package_state" : [ {
    "product_name" : "Red Hat Build of Keycloak",
    "fix_state" : "Affected",
    "package_name" : "rhbk/keycloak-rhel9",
    "cpe" : "cpe:/a:redhat:build_keycloak:"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-37980\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-37980" ],
  "name" : "CVE-2026-37980",
  "mitigation" : {
    "value" : "Restrict access to the Keycloak administration console and login pages to trusted networks only, ideally through a VPN or by configuring firewall rules. Furthermore, ensure that only highly trusted administrators are granted `manage-realm` or `manage-organizations` privileges within Keycloak. Regularly review and audit administrative accounts and their assigned roles to minimize the risk of unauthorized access and exploitation. If the Keycloak service is restarted or reloaded, these network and access restrictions will persist.",
    "lang" : "en:us"
  },
  "csaw" : false
}