WID-SEC-W-2026-0212

Vulnerability from csaf_certbund - Published: 2026-01-25 23:00 - Updated: 2026-06-02 22:00
Summary
Keycloak (netty-codec-http): Schwachstelle ermöglicht Manipulation von Dateien
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, anonymer Angreifer kann eine Schwachstelle in Keycloak ausnutzen, um Dateien zu manipulieren.
Betroffene Betriebssysteme: - Sonstiges - UNIX
CVE-2025-67735
Affected products
Product Identifier Version Remediation
IBM License Metric Tool
IBM
 cpe:/a:ibm:license_metric_tool:- —
IBM DB2
IBM / DB2
 cpe:/a:ibm:db2:- —
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Open Source Keycloak <26.5.2
Open Source / Keycloak
 <26.5.2
IBM DB2
IBM / DB2
 cpe:/a:ibm:db2:- —
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "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 entfernter, anonymer Angreifer kann eine Schwachstelle in Keycloak ausnutzen, um Dateien zu manipulieren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges\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-2026-0212 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0212.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0212 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0212"
      },
      {
        "category": "external",
        "summary": "Keycloak Release Notes vom 2026-01-25",
        "url": "https://www.keycloak.org/2026/01/keycloak-2652-released"
      },
      {
        "category": "external",
        "summary": "NIST Vulnerability Database vom 2026-01-25",
        "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-67735"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6160 vom 2026-03-12",
        "url": "https://security-tracker.debian.org/tracker/DSA-6160-1"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4519 vom 2026-03-31",
        "url": "https://lists.debian.org/debian-lts-announce/2026/03/msg00023.html"
      },
      {
        "category": "external",
        "summary": "IBM Security Bulletin 7269426 vom 2026-04-15",
        "url": "https://www.ibm.com/support/pages/node/7269426"
      },
      {
        "category": "external",
        "summary": "IBM Security Bulletin 7273312 vom 2026-05-18",
        "url": "https://www.ibm.com/support/pages/node/7273312"
      },
      {
        "category": "external",
        "summary": "IBM Security Bulletin 7274848 vom 2026-06-02",
        "url": "https://www.ibm.com/support/pages/node/7274848"
      }
    ],
    "source_lang": "en-US",
    "title": "Keycloak (netty-codec-http): Schwachstelle erm\u00f6glicht Manipulation von Dateien",
    "tracking": {
      "current_release_date": "2026-06-02T22:00:00.000+00:00",
      "generator": {
        "date": "2026-06-03T06:32:32.955+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-0212",
      "initial_release_date": "2026-01-25T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-01-25T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-03-11T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2026-03-31T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2026-04-15T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von IBM aufgenommen"
        },
        {
          "date": "2026-05-18T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von IBM aufgenommen"
        },
        {
          "date": "2026-06-02T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von IBM aufgenommen"
        }
      ],
      "status": "final",
      "version": "6"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "IBM DB2",
                "product": {
                  "name": "IBM DB2",
                  "product_id": "T045745",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:ibm:db2:-"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "IBM DB2",
                "product": {
                  "name": "IBM DB2",
                  "product_id": "T048379",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:ibm:db2:-"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "DB2"
          },
          {
            "category": "product_name",
            "name": "IBM License Metric Tool",
            "product": {
              "name": "IBM License Metric Tool",
              "product_id": "T016581",
              "product_identification_helper": {
                "cpe": "cpe:/a:ibm:license_metric_tool:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "IBM"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c26.5.2",
                "product": {
                  "name": "Open Source Keycloak \u003c26.5.2",
                  "product_id": "T050297"
                }
              },
              {
                "category": "product_version",
                "name": "26.5.2",
                "product": {
                  "name": "Open Source Keycloak 26.5.2",
                  "product_id": "T050297-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:keycloak:keycloak:26.5.2"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Keycloak"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-67735",
      "product_status": {
        "known_affected": [
          "T016581",
          "T045745",
          "2951",
          "T050297",
          "T048379"
        ]
      },
      "release_date": "2026-01-25T23:00:00.000+00:00",
      "title": "CVE-2025-67735"
    }
  ]
}


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Sightings

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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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.


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