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CVE-2026-2603

🗓️ 18 Mar 2026 01:14:53Reported by redhatType 
cve
 cve
🔗 web.nvd.nist.gov👁 194 Views

Remote attacker bypasses Keycloak with a SAML response to enable broker login when the identity provider is disabled.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-2603
18 Mar 202601:14
attackerkb
circl
Circl
CVE-2026-2603
18 Mar 202602:45
circl
cnnvd
CNNVD
Keycloak 安全漏洞
18 Mar 202600:00
cnnvd
cvelist
Cvelist
CVE-2026-2603 Keycloak: keycloak: unauthorized authentication via disabled saml identity provider
18 Mar 202601:14
cvelist
euvd
EUVD
EUVD-2026-12690
18 Mar 202603:32
euvd
github
Github Security Blog
Keycloak: Unauthorized authentication via disabled SAML Identity Provider
18 Mar 202603:32
github
nvd
NVD
CVE-2026-2603
18 Mar 202602:16
nvd
osv
OSV
BIT-KEYCLOAK-2026-2603 Keycloak: keycloak: unauthorized authentication via disabled saml identity provider
25 Aug 202611:42
osv
osv
OSV
CGA-2H82-4G85-7X6R
20 Mar 202602:01
osv
osv
OSV
CGA-2X3C-HX9R-HW67
19 Mar 202613:55
osv
Rows per page
NVD
Vulners
Node
OR
redhatbuild_of_keycloakRange26.226.2.14
redhatbuild_of_keycloakRange26.426.4.10
[
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.2",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "packageName": "rhbk/keycloak-operator-bundle",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "26.2.14-1",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.2::el9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.2",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "packageName": "rhbk/keycloak-rhel9",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "26.2-16",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.2::el9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.2",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "packageName": "rhbk/keycloak-rhel9-operator",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "26.2-16",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.2::el9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.2.14",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "unaffected",
    "packageName": "rhbk/keycloak-rhel9",
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.2::el9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "packageName": "rhbk/keycloak-operator-bundle",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "26.4.10-1",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "packageName": "rhbk/keycloak-rhel9",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "26.4-12",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "packageName": "rhbk/keycloak-rhel9-operator",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "26.4-12",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4.10",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "unaffected",
    "packageName": "rhbk/keycloak-rhel9",
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ]
  }
]

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18 Aug 2026 17:48Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.18.1
EPSS0.00425
SSVC
194