WID-SEC-W-2026-0946

Vulnerability from csaf_certbund - Published: 2026-03-31 22:00 - Updated: 2026-05-27 22:00
Summary
MediaWiki: 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: MediaWiki ist ein freies Wiki, das ursprünglich für den Einsatz auf Wikipedia entwickelt wurde.
Angriff: Ein Angreifer kann mehrere Schwachstellen in MediaWiki ausnutzen, um Informationen offenzulegen, um einen Denial of Service Angriff durchzuführen, und um Sicherheitsvorkehrungen zu umgehen.
Betroffene Betriebssysteme: - Linux - UNIX - Windows
CVE-2026-34086
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source MediaWiki <1.44.4
Open Source / MediaWiki
 <1.44.4
Open Source MediaWiki <1.45.2
Open Source / MediaWiki
 <1.45.2
Open Source MediaWiki <1.43.7
Open Source / MediaWiki
 <1.43.7
CVE-2026-34087
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source MediaWiki <1.44.4
Open Source / MediaWiki
 <1.44.4
Open Source MediaWiki <1.45.2
Open Source / MediaWiki
 <1.45.2
Open Source MediaWiki <1.43.7
Open Source / MediaWiki
 <1.43.7
CVE-2026-34088
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source MediaWiki <1.44.4
Open Source / MediaWiki
 <1.44.4
Open Source MediaWiki <1.45.2
Open Source / MediaWiki
 <1.45.2
Open Source MediaWiki <1.43.7
Open Source / MediaWiki
 <1.43.7
CVE-2026-34089
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source MediaWiki <1.44.4
Open Source / MediaWiki
 <1.44.4
Open Source MediaWiki <1.45.2
Open Source / MediaWiki
 <1.45.2
Open Source MediaWiki <1.43.7
Open Source / MediaWiki
 <1.43.7
CVE-2026-34090
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source MediaWiki <1.44.4
Open Source / MediaWiki
 <1.44.4
Open Source MediaWiki <1.45.2
Open Source / MediaWiki
 <1.45.2
Open Source MediaWiki <1.43.7
Open Source / MediaWiki
 <1.43.7
CVE-2026-34091
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source MediaWiki <1.44.4
Open Source / MediaWiki
 <1.44.4
Open Source MediaWiki <1.45.2
Open Source / MediaWiki
 <1.45.2
Open Source MediaWiki <1.43.7
Open Source / MediaWiki
 <1.43.7
CVE-2026-34092
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source MediaWiki <1.44.4
Open Source / MediaWiki
 <1.44.4
Open Source MediaWiki <1.45.2
Open Source / MediaWiki
 <1.45.2
Open Source MediaWiki <1.43.7
Open Source / MediaWiki
 <1.43.7
CVE-2026-34093
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source MediaWiki <1.44.4
Open Source / MediaWiki
 <1.44.4
Open Source MediaWiki <1.45.2
Open Source / MediaWiki
 <1.45.2
Open Source MediaWiki <1.43.7
Open Source / MediaWiki
 <1.43.7
CVE-2026-34094
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source MediaWiki <1.44.4
Open Source / MediaWiki
 <1.44.4
Open Source MediaWiki <1.45.2
Open Source / MediaWiki
 <1.45.2
Open Source MediaWiki <1.43.7
Open Source / MediaWiki
 <1.43.7
CVE-2026-34095
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source MediaWiki <1.44.4
Open Source / MediaWiki
 <1.44.4
Open Source MediaWiki <1.45.2
Open Source / MediaWiki
 <1.45.2
Open Source MediaWiki <1.43.7
Open Source / MediaWiki
 <1.43.7
CVE-2026-5266
Affected products
Product Identifier Version Remediation
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Open Source MediaWiki <1.44.4
Open Source / MediaWiki
 <1.44.4
Open Source MediaWiki <1.45.2
Open Source / MediaWiki
 <1.45.2
Open Source MediaWiki <1.43.7
Open Source / MediaWiki
 <1.43.7
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": "MediaWiki ist ein freies Wiki, das urspr\u00fcnglich f\u00fcr den Einsatz auf Wikipedia entwickelt wurde.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in MediaWiki ausnutzen, um Informationen offenzulegen, um einen Denial of Service Angriff durchzuf\u00fchren, und um Sicherheitsvorkehrungen zu umgehen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- UNIX\n- Windows",
        "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-2026-0946 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0946.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0946 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0946"
      },
      {
        "category": "external",
        "summary": "Security and maintenance release vom 2026-03-31",
        "url": "https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/DIBLSBHISKX6NFRUFNOGZRVW42E7R2QP/"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6208 vom 2026-04-12",
        "url": "https://lists.debian.org/debian-security-announce/2026/msg00118.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-8315-1 vom 2026-05-27",
        "url": "https://ubuntu.com/security/notices/USN-8315-1"
      }
    ],
    "source_lang": "en-US",
    "title": "MediaWiki: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-05-27T22:00:00.000+00:00",
      "generator": {
        "date": "2026-05-28T07:27:08.599+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-0946",
      "initial_release_date": "2026-03-31T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-03-31T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-04-12T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2026-05-11T22:00:00.000+00:00",
          "number": "3",
          "summary": "Referenz(en) aufgenommen: EUVD-2026-29064, EUVD-2026-29063, EUVD-2026-29062, EUVD-2026-29061, EUVD-2026-29060, EUVD-2026-29058, EUVD-2026-29059, EUVD-2026-29107, EUVD-2026-29157, EUVD-2026-29109, EUVD-2026-29108"
        },
        {
          "date": "2026-05-27T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        }
      ],
      "status": "final",
      "version": "4"
    }
  },
  "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_version_range",
                "name": "\u003c1.43.7",
                "product": {
                  "name": "Open Source MediaWiki \u003c1.43.7",
                  "product_id": "T052347"
                }
              },
              {
                "category": "product_version",
                "name": "1.43.7",
                "product": {
                  "name": "Open Source MediaWiki 1.43.7",
                  "product_id": "T052347-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mediawiki:mediawiki:1.43.7"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c1.44.4",
                "product": {
                  "name": "Open Source MediaWiki \u003c1.44.4",
                  "product_id": "T052348"
                }
              },
              {
                "category": "product_version",
                "name": "1.44.4",
                "product": {
                  "name": "Open Source MediaWiki 1.44.4",
                  "product_id": "T052348-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mediawiki:mediawiki:1.44.4"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c1.45.2",
                "product": {
                  "name": "Open Source MediaWiki \u003c1.45.2",
                  "product_id": "T052349"
                }
              },
              {
                "category": "product_version",
                "name": "1.45.2",
                "product": {
                  "name": "Open Source MediaWiki 1.45.2",
                  "product_id": "T052349-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mediawiki:mediawiki:1.45.2"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "MediaWiki"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T000126",
              "product_identification_helper": {
                "cpe": "cpe:/o:canonical:ubuntu_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-34086",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T052348",
          "T052349",
          "T052347"
        ]
      },
      "release_date": "2026-03-31T22:00:00.000+00:00",
      "title": "CVE-2026-34086"
    },
    {
      "cve": "CVE-2026-34087",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T052348",
          "T052349",
          "T052347"
        ]
      },
      "release_date": "2026-03-31T22:00:00.000+00:00",
      "title": "CVE-2026-34087"
    },
    {
      "cve": "CVE-2026-34088",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T052348",
          "T052349",
          "T052347"
        ]
      },
      "release_date": "2026-03-31T22:00:00.000+00:00",
      "title": "CVE-2026-34088"
    },
    {
      "cve": "CVE-2026-34089",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T052348",
          "T052349",
          "T052347"
        ]
      },
      "release_date": "2026-03-31T22:00:00.000+00:00",
      "title": "CVE-2026-34089"
    },
    {
      "cve": "CVE-2026-34090",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T052348",
          "T052349",
          "T052347"
        ]
      },
      "release_date": "2026-03-31T22:00:00.000+00:00",
      "title": "CVE-2026-34090"
    },
    {
      "cve": "CVE-2026-34091",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T052348",
          "T052349",
          "T052347"
        ]
      },
      "release_date": "2026-03-31T22:00:00.000+00:00",
      "title": "CVE-2026-34091"
    },
    {
      "cve": "CVE-2026-34092",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T052348",
          "T052349",
          "T052347"
        ]
      },
      "release_date": "2026-03-31T22:00:00.000+00:00",
      "title": "CVE-2026-34092"
    },
    {
      "cve": "CVE-2026-34093",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T052348",
          "T052349",
          "T052347"
        ]
      },
      "release_date": "2026-03-31T22:00:00.000+00:00",
      "title": "CVE-2026-34093"
    },
    {
      "cve": "CVE-2026-34094",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T052348",
          "T052349",
          "T052347"
        ]
      },
      "release_date": "2026-03-31T22:00:00.000+00:00",
      "title": "CVE-2026-34094"
    },
    {
      "cve": "CVE-2026-34095",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T052348",
          "T052349",
          "T052347"
        ]
      },
      "release_date": "2026-03-31T22:00:00.000+00:00",
      "title": "CVE-2026-34095"
    },
    {
      "cve": "CVE-2026-5266",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T052348",
          "T052349",
          "T052347"
        ]
      },
      "release_date": "2026-03-31T22:00:00.000+00:00",
      "title": "CVE-2026-5266"
    }
  ]
}


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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.


Detection rules are retrieved from Rulezet.