Vulnerability-Lookup

CVE-2026-3190 (GCVE-0-2026-3190)

Vulnerability from cvelistv5 – Published: 2026-03-26 19:12 – Updated: 2026-03-27 13:57

Title

Keycloak: keycloak: information disclosure via improper role enforcement in uma 2.0 protection api

Summary

A flaw was found in Keycloak. The User-Managed Access (UMA) 2.0 Protection API endpoint for permission tickets fails to enforce the `uma_protection` role check. This allows any authenticated user with a token issued for a resource server client, even without the `uma_protection` role, to enumerate all permission tickets in the system. This vulnerability partial leads to information disclosure.

Severity ?

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CWE

CWE-280 - Improper Handling of Insufficient Permissions or Privileges

Assigner

redhat

References

URL

Tags

	https://access.redhat.com/security/cve/CVE-2026-3190	vdb-entryx_refsource_REDHAT
	https://bugzilla.redhat.com/show_bug.cgi?id=2442572	issue-trackingx_refsource_REDHAT

Impacted products

	Vendor	Product	Version
	Red Hat	Red Hat Build of Keycloak	cpe:/a:redhat:build_keycloak:

Date Public ?

2026-02-25 07:07

Credits

Red Hat would like to thank Evan Hendra (Independent Security Researcher) for reporting this issue.

Show details on NVD website

JSON

To clipboard

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GHSA-Q35R-VVHV-VX5H

Vulnerability from github – Published: 2026-03-26 21:31 – Updated: 2026-03-29 15:46

Summary

Keycloak: Missing Role Enforcement on UMA 2.0 Permission Ticket Endpoint Leads to Information Disclosure

Details

A flaw was found in Keycloak. The User-Managed Access (UMA) 2.0 Protection API endpoint for permission tickets fails to enforce the uma_protection role check. This allows any authenticated user with a token issued for a resource server client, even without the uma_protection role, to enumerate all permission tickets in the system. This vulnerability partial leads to information disclosure.

Severity ?

4.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-server-spi-private"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "26.5.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-services"
      },
      "ranges": [
        {
          "events": [
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        }
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    },
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        "name": "org.keycloak:keycloak-model-jpa"
      },
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          "events": [
            {
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            },
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            }
          ],
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        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-3190"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-280"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-29T15:46:10Z",
    "nvd_published_at": "2026-03-26T19:17:06Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in Keycloak. The User-Managed Access (UMA) 2.0 Protection API endpoint for permission tickets fails to enforce the `uma_protection` role check. This allows any authenticated user with a token issued for a resource server client, even without the `uma_protection` role, to enumerate all permission tickets in the system. This vulnerability partial leads to information disclosure.",
  "id": "GHSA-q35r-vvhv-vx5h",
  "modified": "2026-03-29T15:46:10Z",
  "published": "2026-03-26T21:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3190"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/issues/46723"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/commit/f1baf25cbb1551202570f954102eb2d270ab0694"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-3190"
    },
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      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2442572"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/keycloak/keycloak"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Keycloak: Missing Role Enforcement on UMA 2.0 Permission Ticket Endpoint Leads to Information Disclosure"
}

WID-SEC-W-2026-0508

Vulnerability from csaf_certbund - Published: 2026-02-24 23:00 - Updated: 2026-03-26 23:00

Summary

Keycloak: Schwachstelle ermöglicht Offenlegung von Informationen

Severity

Mittel

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung: Keycloak ermöglicht Single Sign-On mit Identity and Access Management für moderne Anwendungen und Dienste.

Angriff: Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Keycloak ausnutzen, um Informationen offenzulegen.

Betroffene Betriebssysteme: - Linux - UNIX

CVE-2026-3190

References

URL

Category

	https://wid.cert-bund.de/.well-known/csaf/white/2…	self
	https://wid.cert-bund.de/portal/wid/securityadvis…	self
	https://bugzilla.redhat.com/show_bug.cgi?id=2442572	external
	https://access.redhat.com/security/cve/CVE-2026-3190	external
	https://www.keycloak.org/2026/03/keycloak-2656-released	external

JSON

To clipboard

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    "aggregate_severity": {
      "text": "mittel"
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    "csaf_version": "2.0",
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      }
    },
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        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
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      },
      {
        "category": "external",
        "summary": "Keycloak 26.5.6 release notes vom 2026-03-19",
        "url": "https://www.keycloak.org/2026/03/keycloak-2656-released"
      }
    ],
    "source_lang": "en-US",
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          "date": "2026-03-18T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates aufgenommen"
        },
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          "number": "3",
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}

FKIE_CVE-2026-3190

Vulnerability from fkie_nvd - Published: 2026-03-26 19:17 - Updated: 2026-03-30 13:26

Severity ?

4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Summary

References

	URL	Tags
	secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2026-3190
	secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2442572

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Keycloak. The User-Managed Access (UMA) 2.0 Protection API endpoint for permission tickets fails to enforce the `uma_protection` role check. This allows any authenticated user with a token issued for a resource server client, even without the `uma_protection` role, to enumerate all permission tickets in the system. This vulnerability partial leads to information disclosure."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una falla en Keycloak. El endpoint de la API de protecci\u00f3n de User-Managed Access (UMA) 2.0 para tickets de permiso no aplica la verificaci\u00f3n del rol \u0027uma_protection\u0027. Esto permite que cualquier usuario autenticado con un token emitido para un cliente de servidor de recursos, incluso sin el rol \u0027uma_protection\u0027, enumere todos los tickets de permiso en el sistema. Esta vulnerabilidad conduce parcialmente a la revelaci\u00f3n de informaci\u00f3n."
    }
  ],
  "id": "CVE-2026-3190",
  "lastModified": "2026-03-30T13:26:50.827",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "secalert@redhat.com",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-03-26T19:17:06.413",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2026-3190"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2442572"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-280"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Primary"
    }
  ]
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2026-3190 (GCVE-0-2026-3190)

GHSA-Q35R-VVHV-VX5H

WID-SEC-W-2026-0508

FKIE_CVE-2026-3190

Tags

Sightings

Nomenclature