{
  "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 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."
    }, {
      "category" : "description",
      "text" : "Die libpng ist die offizielle Referenzbibliothek für die Darstellung und Manipulation von Bildern im Portable Network Graphics (PNG) Format.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein lokaler Angreifer kann eine Schwachstelle in libpng ausnutzen, um Informationen offenzulegen.",
      "title" : "Angriff"
    }, {
      "category" : "general",
      "text" : "- Linux\n- Sonstiges\n- UNIX\n- Windows",
      "title" : "Betroffene Betriebssysteme"
    } ],
    "publisher" : {
      "category" : "other",
      "contact_details" : "csaf-provider@cert-bund.de",
      "name" : "Bundesamt für Sicherheit in der Informationstechnik",
      "namespace" : "https://www.bsi.bund.de"
    },
    "references" : [ {
      "category" : "self",
      "summary" : "WID-SEC-W-2026-1023 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1023.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2026-1023 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1023"
    }, {
      "category" : "external",
      "summary" : "GitHub Security Advisory GHSA-6fr7-g8h7-v645 vom 2026-04-08",
      "url" : "https://github.com/pnggroup/libpng/security/advisories/GHSA-6fr7-g8h7-v645"
    }, {
      "category" : "external",
      "summary" : "Microsoft Security Update Guide vom 2026-04-14",
      "url" : "https://msrc.microsoft.com/update-guide/"
    }, {
      "category" : "external",
      "summary" : "openSUSE Security Update OPENSUSE-SU-2026:10564-1 vom 2026-04-17",
      "url" : "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/W2IO45KINLPHGWR2RZWGQYIZQTCXI7AV/"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:1500-1 vom 2026-04-21",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025479.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:21239-1 vom 2026-04-22",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025556.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:21262-1 vom 2026-04-23",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025579.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:21251-1 vom 2026-04-23",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025587.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:1602-1 vom 2026-04-24",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025618.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:1601-1 vom 2026-04-24",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025619.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:21364-1 vom 2026-04-28",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025740.html"
    }, {
      "category" : "external",
      "summary" : "Amazon Linux Security Advisory ALAS2-2026-3266 vom 2026-04-30",
      "url" : "https://alas.aws.amazon.com/AL2/ALAS2-2026-3266.html"
    }, {
      "category" : "external",
      "summary" : "openSUSE Security Update OPENSUSE-SU-2026:10640-1 vom 2026-04-30",
      "url" : "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/XIE7LM4AK2R45TAYTB7NKRDWE4D3RHTT/"
    }, {
      "category" : "external",
      "summary" : "Red Hat Security Advisory RHSA-2026:13719 vom 2026-05-05",
      "url" : "https://access.redhat.com/errata/RHSA-2026:13719"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:1716-1 vom 2026-05-06",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025887.html"
    }, {
      "category" : "external",
      "summary" : "Ubuntu Security Notice USN-8251-1 vom 2026-05-07",
      "url" : "https://ubuntu.com/security/notices/USN-8251-1"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DLA-4573 vom 2026-05-09",
      "url" : "https://lists.debian.org/debian-lts-announce/2026/05/msg00017.html"
    }, {
      "category" : "external",
      "summary" : "Debian Security Advisory DSA-6263 vom 2026-05-10",
      "url" : "https://lists.debian.org/debian-security-announce/2026/msg00174.html"
    }, {
      "category" : "external",
      "summary" : "SUSE Security Update SUSE-SU-2026:2057-1 vom 2026-05-25",
      "url" : "https://lists.suse.com/pipermail/sle-security-updates/2026-May/026269.html"
    }, {
      "category" : "external",
      "summary" : "Fedora Security Advisory FEDORA-2026-A109A9AC2C vom 2026-05-26",
      "url" : "https://bodhi.fedoraproject.org/updates/FEDORA-2026-a109a9ac2c"
    }, {
      "category" : "external",
      "summary" : "Fedora Security Advisory FEDORA-2026-9A678A08C8 vom 2026-05-26",
      "url" : "https://bodhi.fedoraproject.org/updates/FEDORA-2026-9a678a08c8"
    }, {
      "category" : "external",
      "summary" : "Fedora Security Advisory FEDORA-2026-67C1138ED2 vom 2026-05-26",
      "url" : "https://bodhi.fedoraproject.org/updates/FEDORA-2026-67c1138ed2"
    } ],
    "source_lang" : "en-US",
    "title" : "libpng: Schwachstelle ermöglicht Offenlegung von Informationen",
    "tracking" : {
      "current_release_date" : "2026-05-25T22:00:00.000+00:00",
      "generator" : {
        "date" : "2026-05-26T12:16:10.784+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.6.0"
        }
      },
      "id" : "WID-SEC-W-2026-1023",
      "initial_release_date" : "2026-04-08T22:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2026-04-08T22:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2026-04-09T22:00:00.000+00:00",
        "number" : "2",
        "summary" : "Referenz(en) aufgenommen: EUVD-2026-20897, 2456918"
      }, {
        "date" : "2026-04-14T22:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates aufgenommen"
      }, {
        "date" : "2026-04-19T22:00:00.000+00:00",
        "number" : "4",
        "summary" : "Neue Updates von openSUSE aufgenommen"
      }, {
        "date" : "2026-04-20T22:00:00.000+00:00",
        "number" : "5",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2026-04-22T22:00:00.000+00:00",
        "number" : "6",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2026-04-23T22:00:00.000+00:00",
        "number" : "7",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2026-04-26T22:00:00.000+00:00",
        "number" : "8",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2026-04-28T22:00:00.000+00:00",
        "number" : "9",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2026-04-29T22:00:00.000+00:00",
        "number" : "10",
        "summary" : "Neue Updates von Amazon aufgenommen"
      }, {
        "date" : "2026-05-03T22:00:00.000+00:00",
        "number" : "11",
        "summary" : "Neue Updates von openSUSE aufgenommen"
      }, {
        "date" : "2026-05-05T22:00:00.000+00:00",
        "number" : "12",
        "summary" : "Neue Updates von Red Hat aufgenommen"
      }, {
        "date" : "2026-05-06T22:00:00.000+00:00",
        "number" : "13",
        "summary" : "Neue Updates von SUSE aufgenommen"
      }, {
        "date" : "2026-05-07T22:00:00.000+00:00",
        "number" : "14",
        "summary" : "Neue Updates von Ubuntu aufgenommen"
      }, {
        "date" : "2026-05-10T22:00:00.000+00:00",
        "number" : "15",
        "summary" : "Neue Updates von Debian aufgenommen"
      }, {
        "date" : "2026-05-25T22:00:00.000+00:00",
        "number" : "16",
        "summary" : "Neue Updates von SUSE und Fedora aufgenommen"
      } ],
      "status" : "final",
      "version" : "16"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "branches" : [ {
        "category" : "product_name",
        "name" : "Amazon Linux 2",
        "product" : {
          "name" : "Amazon Linux 2",
          "product_id" : "398363",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:amazon:linux_2:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Amazon"
    }, {
      "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" : [ {
        "category" : "product_name",
        "name" : "Fedora Linux",
        "product" : {
          "name" : "Fedora Linux",
          "product_id" : "74185",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:fedoraproject:fedora:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Fedora"
    }, {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_version",
          "name" : "azl3",
          "product" : {
            "name" : "Microsoft Azure Linux azl3",
            "product_id" : "T049210",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:microsoft:azure_linux:azl3"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Azure Linux"
      } ],
      "category" : "vendor",
      "name" : "Microsoft"
    }, {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "<1.6.57",
          "product" : {
            "name" : "Open Source libpng <1.6.57",
            "product_id" : "T052572"
          }
        }, {
          "category" : "product_version",
          "name" : "1.6.57",
          "product" : {
            "name" : "Open Source libpng 1.6.57",
            "product_id" : "T052572-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:libpng:libpng:1.6.57"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "Trunk <1.8.0",
          "product" : {
            "name" : "Open Source libpng Trunk <1.8.0",
            "product_id" : "T052573"
          }
        }, {
          "category" : "product_version",
          "name" : "Trunk 1.8.0",
          "product" : {
            "name" : "Open Source libpng Trunk 1.8.0",
            "product_id" : "T052573-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:libpng:libpng:trunk__1.8.0"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "libpng"
      } ],
      "category" : "vendor",
      "name" : "Open Source"
    }, {
      "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" : "vendor",
      "name" : "Red Hat"
    }, {
      "branches" : [ {
        "category" : "product_name",
        "name" : "SUSE Linux",
        "product" : {
          "name" : "SUSE Linux",
          "product_id" : "T002207",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:suse:suse_linux:-"
          }
        }
      }, {
        "category" : "product_name",
        "name" : "SUSE openSUSE",
        "product" : {
          "name" : "SUSE openSUSE",
          "product_id" : "T027843",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:suse:opensuse:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "SUSE"
    }, {
      "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-2026-34757",
    "product_status" : {
      "known_affected" : [ "T052572", "2951", "T002207", "67646", "T000126", "T027843", "398363", "T049210", "74185", "T052573" ]
    },
    "release_date" : "2026-04-08T22:00:00.000+00:00",
    "title" : "CVE-2026-34757"
  } ]
}