{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Moderate"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update for Red Hat Hardened Images RPMs is now available.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "This update includes the following RPMs:\n\navahi:\n  * avahi-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-autoipd-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-compat-howl-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-compat-howl-devel-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-compat-libdns_sd-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-compat-libdns_sd-devel-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-devel-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-dnsconfd-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-glib-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-glib-devel-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-gobject-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-gobject-devel-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-libs-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-qt3-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-qt3-devel-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-qt4-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-qt4-devel-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-qt5-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-qt5-devel-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-sharp-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-tools-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-ui-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-ui-devel-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-ui-gtk3-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-ui-sharp-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-ui-sharp-devel-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-ui-tools-0.9~rc4-0.1.hum1 (aarch64, x86_64)\n  * avahi-0.9~rc4-0.1.hum1.src (src)\n\nSecurity Fix(es):\n\navahi:\n  * CVE-2025-68276\n  * CVE-2025-68468\n  * CVE-2025-68471\n  * CVE-2026-24401\n  * CVE-2026-34933",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2026:11316",
        "url": "https://access.redhat.com/errata/RHSA-2026:11316"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2025-68276",
        "url": "https://access.redhat.com/security/cve/CVE-2025-68276"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2025-68468",
        "url": "https://access.redhat.com/security/cve/CVE-2025-68468"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2025-68471",
        "url": "https://access.redhat.com/security/cve/CVE-2025-68471"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2026-24401",
        "url": "https://access.redhat.com/security/cve/CVE-2026-24401"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2026-34933",
        "url": "https://access.redhat.com/security/cve/CVE-2026-34933"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/",
        "url": "https://access.redhat.com/security/updates/classification/"
      },
      {
        "category": "external",
        "summary": "https://images.redhat.com/",
        "url": "https://images.redhat.com/"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_11316.json"
      }
    ],
    "title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update",
    "tracking": {
      "current_release_date": "2026-09-06T23:40:55+00:00",
      "generator": {
        "date": "2026-09-06T23:40:55+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "5.3.16"
        }
      },
      "id": "RHSA-2026:11316",
      "initial_release_date": "2026-04-28T04:05:00+00:00",
      "revision_history": [
        {
          "date": "2026-04-28T04:05:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-09-04T00:36:24+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2026-09-06T23:40:55+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Hardened Images",
                "product": {
                  "name": "Red Hat Hardened Images",
                  "product_id": "Red Hat Hardened Images",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:hummingbird:1"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Hardened Images"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "avahi-main@aarch64",
                "product": {
                  "name": "avahi-main@aarch64",
                  "product_id": "avahi-main@aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/avahi@0.9~rc4-0.1.hum1?arch=aarch64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-aarch64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "aarch64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "avahi-main@src",
                "product": {
                  "name": "avahi-main@src",
                  "product_id": "avahi-main@src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/avahi@0.9~rc4-0.1.hum1?arch=src\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-source-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "avahi-main@x86_64",
                "product": {
                  "name": "avahi-main@x86_64",
                  "product_id": "avahi-main@x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/avahi@0.9~rc4-0.1.hum1?arch=x86_64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "avahi-main@aarch64 as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:avahi-main@aarch64"
        },
        "product_reference": "avahi-main@aarch64",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "avahi-main@src as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:avahi-main@src"
        },
        "product_reference": "avahi-main@src",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "avahi-main@x86_64 as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:avahi-main@x86_64"
        },
        "product_reference": "avahi-main@x86_64",
        "relates_to_product_reference": "Red Hat Hardened Images"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-68276",
      "cwe": {
        "id": "CWE-617",
        "name": "Reachable Assertion"
      },
      "discovery_date": "2026-01-12T18:01:32.877107+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2428713"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Avahi, a system that facilitates service discovery on a local network. An unprivileged local user can exploit this vulnerability by creating record browsers with the AVAHI_LOOKUP_USE_WIDE_AREA flag set via D-Bus. This can lead to a Denial of Service (DoS) by crashing the avahi-daemon, making the service unavailable.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "avahi: Avahi: Denial of Service via D-Bus record browsers with AVAHI_LOOKUP_USE_WIDE_AREA flag",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:avahi-main@aarch64",
          "Red Hat Hardened Images:avahi-main@src",
          "Red Hat Hardened Images:avahi-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2025-68276"
        },
        {
          "category": "external",
          "summary": "RHBZ#2428713",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2428713"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-68276",
          "url": "https://www.cve.org/CVERecord?id=CVE-2025-68276"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-68276",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68276"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/commit/ede7048475c5d47d53890e3bc1350dda8e0b3688",
          "url": "https://github.com/avahi/avahi/commit/ede7048475c5d47d53890e3bc1350dda8e0b3688"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/pull/806",
          "url": "https://github.com/avahi/avahi/pull/806"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/security/advisories/GHSA-mhf3-865v-g5rc",
          "url": "https://github.com/avahi/avahi/security/advisories/GHSA-mhf3-865v-g5rc"
        }
      ],
      "release_date": "2026-01-12T17:31:49.652000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-04-28T04:05:00+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:avahi-main@aarch64",
            "Red Hat Hardened Images:avahi-main@src",
            "Red Hat Hardened Images:avahi-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:11316"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:avahi-main@aarch64",
            "Red Hat Hardened Images:avahi-main@src",
            "Red Hat Hardened Images:avahi-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "avahi: Avahi: Denial of Service via D-Bus record browsers with AVAHI_LOOKUP_USE_WIDE_AREA flag"
    },
    {
      "cve": "CVE-2025-68468",
      "cwe": {
        "id": "CWE-617",
        "name": "Reachable Assertion"
      },
      "discovery_date": "2026-01-12T18:01:40.703037+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2428714"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Avahi. A remote attacker can cause a Denial of Service (DoS) by sending specially crafted unsolicited announcements containing CNAME resource records. These records, when pointing to other resource records with short Time-To-Live (TTL) values, can lead to the `avahi-daemon` crashing once they expire. This vulnerability impacts the availability of services relying on Avahi\u0027s service discovery.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "avahi: Avahi: Denial of Service via crafted mDNS/DNS-SD announcements",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:avahi-main@aarch64",
          "Red Hat Hardened Images:avahi-main@src",
          "Red Hat Hardened Images:avahi-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2025-68468"
        },
        {
          "category": "external",
          "summary": "RHBZ#2428714",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2428714"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-68468",
          "url": "https://www.cve.org/CVERecord?id=CVE-2025-68468"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-68468",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68468"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a",
          "url": "https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/issues/683",
          "url": "https://github.com/avahi/avahi/issues/683"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/security/advisories/GHSA-cp79-r4x9-vf52",
          "url": "https://github.com/avahi/avahi/security/advisories/GHSA-cp79-r4x9-vf52"
        }
      ],
      "release_date": "2026-01-12T17:38:10.492000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-04-28T04:05:00+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:avahi-main@aarch64",
            "Red Hat Hardened Images:avahi-main@src",
            "Red Hat Hardened Images:avahi-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:11316"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:avahi-main@aarch64",
            "Red Hat Hardened Images:avahi-main@src",
            "Red Hat Hardened Images:avahi-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "avahi: Avahi: Denial of Service via crafted mDNS/DNS-SD announcements"
    },
    {
      "cve": "CVE-2025-68471",
      "cwe": {
        "id": "CWE-617",
        "name": "Reachable Assertion"
      },
      "discovery_date": "2026-01-12T18:02:06.037426+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2428717"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Avahi, a system that enables devices to discover services on a local network using the mDNS/DNS-SD (Multicast Domain Name System/DNS-based Service Discovery) protocols. A remote attacker can exploit this by sending two specific network messages, known as unsolicited announcements with CNAME resource records, within a two-second timeframe. This action can cause the `avahi-daemon` process to crash, leading to a Denial of Service (DoS) for the affected system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "avahi: Avahi: Denial of Service via unsolicited CNAME announcements",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:avahi-main@aarch64",
          "Red Hat Hardened Images:avahi-main@src",
          "Red Hat Hardened Images:avahi-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2025-68471"
        },
        {
          "category": "external",
          "summary": "RHBZ#2428717",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2428717"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-68471",
          "url": "https://www.cve.org/CVERecord?id=CVE-2025-68471"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-68471",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68471"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/commit/9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1",
          "url": "https://github.com/avahi/avahi/commit/9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/issues/678",
          "url": "https://github.com/avahi/avahi/issues/678"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/security/advisories/GHSA-56rf-42xr-qmmg",
          "url": "https://github.com/avahi/avahi/security/advisories/GHSA-56rf-42xr-qmmg"
        }
      ],
      "release_date": "2026-01-12T17:39:57.416000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-04-28T04:05:00+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:avahi-main@aarch64",
            "Red Hat Hardened Images:avahi-main@src",
            "Red Hat Hardened Images:avahi-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:11316"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:avahi-main@aarch64",
            "Red Hat Hardened Images:avahi-main@src",
            "Red Hat Hardened Images:avahi-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "avahi: Avahi: Denial of Service via unsolicited CNAME announcements"
    },
    {
      "cve": "CVE-2026-24401",
      "cwe": {
        "id": "CWE-674",
        "name": "Uncontrolled Recursion"
      },
      "discovery_date": "2026-01-24T02:01:37.641693+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2432534"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Avahi, a system that enables devices to discover services on a local network. A remote attacker can exploit this vulnerability by sending a specially crafted mDNS (multicast Domain Name System) response containing a recursive CNAME (Canonical Name) record. This triggers an uncontrolled recursion within the avahi-daemon process, leading to stack exhaustion and causing the service to crash. This results in a denial of service (DoS) for affected systems.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "avahi: Avahi: Denial of Service via recursive CNAME record in mDNS response",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This MODERATE impact flaw in Avahi\u0027s `avahi-daemon` can lead to a denial of service. An attacker on the local network could send a specially crafted, unsolicited mDNS response containing a recursive CNAME record, causing unbounded recursion and a crash. This affects systems where Avahi\u0027s record browsers explicitly use multicast, such as those utilizing `nss-mdns`.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:avahi-main@aarch64",
          "Red Hat Hardened Images:avahi-main@src",
          "Red Hat Hardened Images:avahi-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-24401"
        },
        {
          "category": "external",
          "summary": "RHBZ#2432534",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2432534"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-24401",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-24401"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-24401",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24401"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/commit/78eab31128479f06e30beb8c1cbf99dd921e2524",
          "url": "https://github.com/avahi/avahi/commit/78eab31128479f06e30beb8c1cbf99dd921e2524"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/issues/501",
          "url": "https://github.com/avahi/avahi/issues/501"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/security/advisories/GHSA-h4vp-5m8j-f6w3",
          "url": "https://github.com/avahi/avahi/security/advisories/GHSA-h4vp-5m8j-f6w3"
        }
      ],
      "release_date": "2026-01-24T01:25:02.294000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-04-28T04:05:00+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:avahi-main@aarch64",
            "Red Hat Hardened Images:avahi-main@src",
            "Red Hat Hardened Images:avahi-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:11316"
        },
        {
          "category": "workaround",
          "details": "To mitigate this issue, disable the avahi-daemon service if mDNS/DNS-SD functionality is not required on the system.\n\n```bash\nsudo systemctl disable --now avahi-daemon.service\nsudo systemctl mask avahi-daemon.service\n```\n\nDisabling this service may impact applications relying on mDNS for local network service discovery. A system reboot or service reload may be required for the changes to take full effect.",
          "product_ids": [
            "Red Hat Hardened Images:avahi-main@aarch64",
            "Red Hat Hardened Images:avahi-main@src",
            "Red Hat Hardened Images:avahi-main@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:avahi-main@aarch64",
            "Red Hat Hardened Images:avahi-main@src",
            "Red Hat Hardened Images:avahi-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "avahi: Avahi: Denial of Service via recursive CNAME record in mDNS response"
    },
    {
      "cve": "CVE-2026-34933",
      "cwe": {
        "id": "CWE-1288",
        "name": "Improper Validation of Consistency within Input"
      },
      "discovery_date": "2026-04-03T23:01:28.844635+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2454978"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Avahi. An unprivileged local user can exploit this vulnerability by sending a D-Bus method call with conflicting publish flags. This can lead to a denial of service (DoS) by crashing the avahi-daemon, making the service unavailable.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "avahi: avahi-daemon: Avahi: Denial of Service via D-Bus method call",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:avahi-main@aarch64",
          "Red Hat Hardened Images:avahi-main@src",
          "Red Hat Hardened Images:avahi-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-34933"
        },
        {
          "category": "external",
          "summary": "RHBZ#2454978",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2454978"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-34933",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-34933"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-34933",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34933"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/commit/625ca0fac19229f6dfa3a6c6b698ae657187e50c",
          "url": "https://github.com/avahi/avahi/commit/625ca0fac19229f6dfa3a6c6b698ae657187e50c"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/pull/891",
          "url": "https://github.com/avahi/avahi/pull/891"
        },
        {
          "category": "external",
          "summary": "https://github.com/avahi/avahi/security/advisories/GHSA-w65r-6gxh-vhvc",
          "url": "https://github.com/avahi/avahi/security/advisories/GHSA-w65r-6gxh-vhvc"
        }
      ],
      "release_date": "2026-04-03T22:43:26.683000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-04-28T04:05:00+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:avahi-main@aarch64",
            "Red Hat Hardened Images:avahi-main@src",
            "Red Hat Hardened Images:avahi-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:11316"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:avahi-main@aarch64",
            "Red Hat Hardened Images:avahi-main@src",
            "Red Hat Hardened Images:avahi-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "avahi: avahi-daemon: Avahi: Denial of Service via D-Bus method call"
    }
  ]
}