WID-SEC-W-2026-2915

Vulnerability from csaf_certbund - Published: 2026-08-18 22:00 - Updated: 2026-08-24 22:00
Summary
Keycloak: Mehrere Schwachstellen
Severity
Hoch
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 Angreifer kann mehrere Schwachstellen in Keycloak ausnutzen, um Sicherheitsvorkehrungen zu umgehen und dadurch Benutzerkonten zu übernehmen.
Betroffene Betriebssysteme: - Linux - UNIX
CVE-2026-15571
Affected products
Product Identifier Version Remediation
Open Source Keycloak <26.7.2
Open Source / Keycloak
 <26.7.2
Red Hat Enterprise Linux
Red Hat / Enterprise Linux
 cpe:/o:redhat:enterprise_linux:- —
Red Hat Enterprise Linux Keycloak
Red Hat / Enterprise Linux
 cpe:/o:redhat:enterprise_linux:keycloak Keycloak
CVE-2026-18963
Affected products
Known affected 3 products, the same list as for CVE-2026-15571
CVE-2026-45292
Affected products
Known affected 3 products, the same list as for CVE-2026-15571
CVE-2026-59888
Affected products
Known affected 3 products, the same list as for CVE-2026-15571
CVE-2026-59889
Affected products
Known affected 3 products, the same list as for CVE-2026-15571
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "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."
      },
      {
        "category": "description",
        "text": "Keycloak erm\u00f6glicht Single Sign-On mit Identity and Access Management f\u00fcr moderne Anwendungen und Dienste.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Keycloak ausnutzen, um Sicherheitsvorkehrungen zu umgehen und dadurch Benutzerkonten zu \u00fcbernehmen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- UNIX",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-2915 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2915.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-2915 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2915"
      },
      {
        "category": "external",
        "summary": "Keycloak 26.7.2 release vom 2026-08-18",
        "url": "https://www.keycloak.org/2026/08/keycloak-2672-released"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:56524 vom 2026-08-18",
        "url": "https://access.redhat.com/errata/RHSA-2026:56524"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:56523 vom 2026-08-19",
        "url": "https://access.redhat.com/errata/RHSA-2026:56523"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:56520 vom 2026-08-18",
        "url": "https://access.redhat.com/errata/RHSA-2026:56520"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:56519 vom 2026-08-19",
        "url": "https://access.redhat.com/errata/RHSA-2026:56519"
      },
      {
        "category": "external",
        "summary": "PoC CVE-2026-18963 vom 2026-08-24",
        "url": "https://github.com/Red-Darkin/CVE-2026-18963-keycloak"
      }
    ],
    "source_lang": "en-US",
    "title": "Keycloak: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-08-24T22:00:00.000+00:00",
      "generator": {
        "date": "2026-08-25T05:21:09.000+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-2915",
      "initial_release_date": "2026-08-18T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-08-18T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-08-24T22:00:00.000+00:00",
          "number": "2",
          "summary": "PoC f\u00fcr CVE-2026-18963 aufgenommen"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c26.7.2",
                "product": {
                  "name": "Open Source Keycloak \u003c26.7.2",
                  "product_id": "T058290"
                }
              },
              {
                "category": "product_version",
                "name": "26.7.2",
                "product": {
                  "name": "Open Source Keycloak 26.7.2",
                  "product_id": "T058290-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:keycloak:keycloak:26.7.2"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Keycloak"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux",
                "product": {
                  "name": "Red Hat Enterprise Linux",
                  "product_id": "67646",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:-"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "Keycloak",
                "product": {
                  "name": "Red Hat Enterprise Linux Keycloak",
                  "product_id": "T050024",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:keycloak"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Enterprise Linux"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-15571",
      "product_status": {
        "known_affected": [
          "T058290",
          "67646",
          "T050024"
        ]
      },
      "release_date": "2026-08-18T22:00:00.000+00:00",
      "title": "CVE-2026-15571"
    },
    {
      "cve": "CVE-2026-18963",
      "product_status": {
        "known_affected": [
          "T058290",
          "67646",
          "T050024"
        ]
      },
      "release_date": "2026-08-18T22:00:00.000+00:00",
      "title": "CVE-2026-18963"
    },
    {
      "cve": "CVE-2026-45292",
      "product_status": {
        "known_affected": [
          "T058290",
          "67646",
          "T050024"
        ]
      },
      "release_date": "2026-08-18T22:00:00.000+00:00",
      "title": "CVE-2026-45292"
    },
    {
      "cve": "CVE-2026-59888",
      "product_status": {
        "known_affected": [
          "T058290",
          "67646",
          "T050024"
        ]
      },
      "release_date": "2026-08-18T22:00:00.000+00:00",
      "title": "CVE-2026-59888"
    },
    {
      "cve": "CVE-2026-59889",
      "product_status": {
        "known_affected": [
          "T058290",
          "67646",
          "T050024"
        ]
      },
      "release_date": "2026-08-18T22:00:00.000+00:00",
      "title": "CVE-2026-59889"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.