{
  "document" : {
    "aggregate_severity" : {
      "namespace" : "https://access.redhat.com/security/updates/classification/",
      "text" : "Moderate"
    },
    "category" : "csaf_security_advisory",
    "csaf_version" : "2.0",
    "distribution" : {
      "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\nhugo:\n  * hugo-0.160.1-2.hum1 (aarch64, x86_64)\n  * hugo-0.160.1-2.hum1.src (src)",
      "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-2026:7848",
      "url" : "https://access.redhat.com/errata/RHSA-2026:7848"
    }, {
      "category" : "external",
      "summary" : "https://images.redhat.com/",
      "url" : "https://images.redhat.com/"
    }, {
      "category" : "external",
      "summary" : "https://access.redhat.com/security/cve/CVE-2026-35166",
      "url" : "https://access.redhat.com/security/cve/CVE-2026-35166"
    }, {
      "category" : "external",
      "summary" : "https://access.redhat.com/security/updates/classification/",
      "url" : "https://access.redhat.com/security/updates/classification/"
    }, {
      "category" : "self",
      "summary" : "Canonical URL",
      "url" : "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_7848.json"
    } ],
    "title" : "Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update",
    "tracking" : {
      "current_release_date" : "2026-04-29T05:21:00+00:00",
      "generator" : {
        "date" : "2026-04-29T05:21:00+00:00",
        "engine" : {
          "name" : "Red Hat SDEngine",
          "version" : "4.7.6"
        }
      },
      "id" : "RHSA-2026:7848",
      "initial_release_date" : "2026-04-13T10:39:02+00:00",
      "revision_history" : [ {
        "date" : "2026-04-13T10:39:02+00:00",
        "number" : "1",
        "summary" : "Initial version"
      }, {
        "date" : "2026-04-18T19:59:58+00:00",
        "number" : "2",
        "summary" : "Last updated version"
      }, {
        "date" : "2026-04-29T05:21:00+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" : "hugo-main@aarch64",
          "product" : {
            "name" : "hugo-main@aarch64",
            "product_id" : "hugo-main@aarch64",
            "product_identification_helper" : {
              "purl" : "pkg:rpm/redhat/hugo@0.160.1-2.hum1?arch=aarch64&distro=hummingbird-20251124&repository_id=public-hummingbird-aarch64-rpms"
            }
          }
        } ],
        "category" : "architecture",
        "name" : "aarch64"
      }, {
        "branches" : [ {
          "category" : "product_version",
          "name" : "hugo-main@src",
          "product" : {
            "name" : "hugo-main@src",
            "product_id" : "hugo-main@src",
            "product_identification_helper" : {
              "purl" : "pkg:rpm/redhat/hugo@0.160.1-2.hum1?arch=src&distro=hummingbird-20251124&repository_id=public-hummingbird-source-rpms"
            }
          }
        } ],
        "category" : "architecture",
        "name" : "src"
      }, {
        "branches" : [ {
          "category" : "product_version",
          "name" : "hugo-main@x86_64",
          "product" : {
            "name" : "hugo-main@x86_64",
            "product_id" : "hugo-main@x86_64",
            "product_identification_helper" : {
              "purl" : "pkg:rpm/redhat/hugo@0.160.1-2.hum1?arch=x86_64&distro=hummingbird-20251124&repository_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" : "hugo-main@aarch64 as a component of Red Hat Hardened Images",
        "product_id" : "Red Hat Hardened Images:hugo-main@aarch64"
      },
      "product_reference" : "hugo-main@aarch64",
      "relates_to_product_reference" : "Red Hat Hardened Images"
    }, {
      "category" : "default_component_of",
      "full_product_name" : {
        "name" : "hugo-main@src as a component of Red Hat Hardened Images",
        "product_id" : "Red Hat Hardened Images:hugo-main@src"
      },
      "product_reference" : "hugo-main@src",
      "relates_to_product_reference" : "Red Hat Hardened Images"
    }, {
      "category" : "default_component_of",
      "full_product_name" : {
        "name" : "hugo-main@x86_64 as a component of Red Hat Hardened Images",
        "product_id" : "Red Hat Hardened Images:hugo-main@x86_64"
      },
      "product_reference" : "hugo-main@x86_64",
      "relates_to_product_reference" : "Red Hat Hardened Images"
    } ]
  },
  "vulnerabilities" : [ {
    "cve" : "CVE-2026-35166",
    "cwe" : {
      "id" : "CWE-79",
      "name" : "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"
    },
    "discovery_date" : "2026-04-06T18:01:18.192678+00:00",
    "ids" : [ {
      "system_name" : "Red Hat Bugzilla ID",
      "text" : "2455512"
    } ],
    "notes" : [ {
      "category" : "description",
      "text" : "A flaw was found in Hugo, a static site generator. This vulnerability arises from improper escaping of links and image links within the default markdown to HTML renderer. A remote attacker could exploit this by crafting malicious markdown content, potentially leading to information disclosure or content manipulation when processed by a user.",
      "title" : "Vulnerability description"
    }, {
      "category" : "summary",
      "text" : "hugo: github.com/gohugoio/hugo: Hugo: Information disclosure and content manipulation via improper markdown link escaping",
      "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:hugo-main@aarch64", "Red Hat Hardened Images:hugo-main@src", "Red Hat Hardened Images:hugo-main@x86_64" ]
    },
    "references" : [ {
      "category" : "self",
      "summary" : "Canonical URL",
      "url" : "https://access.redhat.com/security/cve/CVE-2026-35166"
    }, {
      "category" : "external",
      "summary" : "RHBZ#2455512",
      "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2455512"
    }, {
      "category" : "external",
      "summary" : "https://www.cve.org/CVERecord?id=CVE-2026-35166",
      "url" : "https://www.cve.org/CVERecord?id=CVE-2026-35166"
    }, {
      "category" : "external",
      "summary" : "https://nvd.nist.gov/vuln/detail/CVE-2026-35166",
      "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-35166"
    }, {
      "category" : "external",
      "summary" : "https://github.com/gohugoio/hugo/security/advisories/GHSA-mcv8-8m8x-48pg",
      "url" : "https://github.com/gohugoio/hugo/security/advisories/GHSA-mcv8-8m8x-48pg"
    } ],
    "release_date" : "2026-04-06T17:37:05.643000+00:00",
    "remediations" : [ {
      "category" : "vendor_fix",
      "date" : "2026-04-13T10:39:02+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:hugo-main@aarch64", "Red Hat Hardened Images:hugo-main@src", "Red Hat Hardened Images:hugo-main@x86_64" ],
      "restart_required" : {
        "category" : "none"
      },
      "url" : "https://access.redhat.com/errata/RHSA-2026:7848"
    }, {
      "category" : "workaround",
      "details" : "To mitigate this issue, ensure that all markdown content processed by Hugo originates from trusted sources. Alternatively, implement custom render hooks for links and images within Hugo to ensure proper escaping, as this configuration prevents exploitation.",
      "product_ids" : [ "Red Hat Hardened Images:hugo-main@aarch64", "Red Hat Hardened Images:hugo-main@src", "Red Hat Hardened Images:hugo-main@x86_64" ]
    } ],
    "scores" : [ {
      "cvss_v3" : {
        "attackComplexity" : "LOW",
        "attackVector" : "NETWORK",
        "availabilityImpact" : "NONE",
        "baseScore" : 4.6,
        "baseSeverity" : "MEDIUM",
        "confidentialityImpact" : "LOW",
        "integrityImpact" : "LOW",
        "privilegesRequired" : "LOW",
        "scope" : "UNCHANGED",
        "userInteraction" : "REQUIRED",
        "vectorString" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
        "version" : "3.1"
      },
      "products" : [ "Red Hat Hardened Images:hugo-main@aarch64", "Red Hat Hardened Images:hugo-main@src", "Red Hat Hardened Images:hugo-main@x86_64" ]
    } ],
    "threats" : [ {
      "category" : "impact",
      "details" : "Moderate"
    } ],
    "title" : "hugo: github.com/gohugoio/hugo: Hugo: Information disclosure and content manipulation via improper markdown link escaping"
  } ]
}