GHSA-32H4-44JJ-C5VX

Vulnerability from github – Published: 2026-07-01 21:20 – Updated: 2026-07-01 21:20
VLAI
Summary
Keycloak has privilege escalation via improper scope mapping enforcement
Details

Description

A flaw was found in Keycloak's Fine-Grained Admin Permissions (FGAPv2) feature. An administrator with limited client management permissions can exploit this vulnerability to assign any realm role, including highly privileged roles, to a client's scope mapping. This bypasses intended security controls, allowing the injected role to be projected into a user's authentication token when they access the modified client. This could lead to unauthorized privilege escalation within the Keycloak realm.

Severity
7.3 (High)
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-services"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "26.6.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-9795"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-266"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-01T21:20:38Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Description\nA flaw was found in Keycloak\u0027s Fine-Grained Admin Permissions (FGAPv2) feature. An administrator with limited client management permissions can exploit this vulnerability to assign any realm role, including highly privileged roles, to a client\u0027s scope mapping. This bypasses intended security controls, allowing the injected role to be projected into a user\u0027s authentication token when they access the modified client. This could lead to unauthorized privilege escalation within the Keycloak realm.",
  "id": "GHSA-32h4-44jj-c5vx",
  "modified": "2026-07-01T21:20:38Z",
  "published": "2026-07-01T21:20:38Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/security/advisories/GHSA-32h4-44jj-c5vx"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9795"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/issues/50350"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/pull/50451"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/commit/8894c027e788904c740ff9a1a60fcfaa34a10d13"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:30049"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:30050"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:30083"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:30084"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-9795"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482462"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/keycloak/keycloak"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9795.json"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Keycloak has privilege escalation via improper scope mapping enforcement"
}



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