{
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      "text" : "Moderate"
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      "text" : "Copyright © 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"
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      "issuing_authority" : "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name" : "Red Hat Product Security",
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    "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",
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      "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",
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      "url" : "https://access.redhat.com/security/updates/classification/"
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      "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" : "2026-04-28T04:07:18+00:00",
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        "number" : "1",
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    }
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            "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"
      }, {
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          "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&distro=hummingbird-20251124&repository_id=public-hummingbird-aarch64-rpms"
            }
          }
        } ],
        "category" : "architecture",
        "name" : "aarch64"
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        "branches" : [ {
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          "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&distro=hummingbird-20251124&repository_id=public-hummingbird-source-rpms"
            }
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        } ],
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        "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&distro=hummingbird-20251124&repository_id=public-hummingbird-x86_64-rpms"
            }
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        "category" : "architecture",
        "name" : "x86_64"
      } ],
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    "relationships" : [ {
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      "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"
    }, {
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      "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"
    }, {
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      "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's 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's 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's 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's 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" : [ {
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      "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's `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's 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's 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's 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"
  } ]
}