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{
  "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\npolkit:\n  * polkit-127-5.1.hum1 (aarch64, x86_64)\n  * polkit-devel-127-5.1.hum1 (aarch64, x86_64)\n  * polkit-docs-127-5.1.hum1 (noarch)\n  * polkit-libs-127-5.1.hum1 (aarch64, x86_64)\n  * polkit-127-5.1.hum1.src (src)\n\nSecurity Fix(es):\n\npolkit:\n  * CVE-2026-85498\n  * CVE-2026-4897",
        "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-2026:66287",
        "url": "https://access.redhat.com/errata/RHSA-2026:66287"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2026-4897",
        "url": "https://access.redhat.com/security/cve/CVE-2026-4897"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2026-85498",
        "url": "https://access.redhat.com/security/cve/CVE-2026-85498"
      },
      {
        "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_66287.json"
      }
    ],
    "title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update",
    "tracking": {
      "current_release_date": "2026-09-10T17:23:14+00:00",
      "generator": {
        "date": "2026-09-10T17:23:14+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "5.3.18"
        }
      },
      "id": "RHSA-2026:66287",
      "initial_release_date": "2026-09-10T01:41:30+00:00",
      "revision_history": [
        {
          "date": "2026-09-10T01:41:30+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-09-10T01:43:44+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2026-09-10T17:23:14+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": "polkit-main@aarch64",
                "product": {
                  "name": "polkit-main@aarch64",
                  "product_id": "polkit-main@aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/polkit@127-5.1.hum1?arch=aarch64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-aarch64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "aarch64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "polkit-main@src",
                "product": {
                  "name": "polkit-main@src",
                  "product_id": "polkit-main@src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/polkit@127-5.1.hum1?arch=src\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-source-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "polkit-main@x86_64",
                "product": {
                  "name": "polkit-main@x86_64",
                  "product_id": "polkit-main@x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/polkit@127-5.1.hum1?arch=x86_64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "polkit-main@noarch",
                "product": {
                  "name": "polkit-main@noarch",
                  "product_id": "polkit-main@noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/polkit-docs@127-5.1.hum1?arch=noarch\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "noarch"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "polkit-main@aarch64 as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:polkit-main@aarch64"
        },
        "product_reference": "polkit-main@aarch64",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "polkit-main@noarch as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:polkit-main@noarch"
        },
        "product_reference": "polkit-main@noarch",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "polkit-main@src as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:polkit-main@src"
        },
        "product_reference": "polkit-main@src",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "polkit-main@x86_64 as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:polkit-main@x86_64"
        },
        "product_reference": "polkit-main@x86_64",
        "relates_to_product_reference": "Red Hat Hardened Images"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-4897",
      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2026-03-26T14:24:01.176000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2451739"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the `polkit-agent-helper-1` setuid binary via standard input (stdin). This unbounded input can lead to an out-of-memory (OOM) condition, resulting in a Denial of Service (DoS) for the system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "polkit: Polkit: Denial of Service via unbounded input processing through standard input",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "A moderate severity issue, a denial of service flaw exists in polkit where a local attacker can exhaust system memory. This vulnerability arises from the `polkit-agent-helper-1` setuid binary processing excessively long input via standard input without size limitations, leading to an out-of-memory condition.",
          "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:polkit-main@aarch64",
          "Red Hat Hardened Images:polkit-main@noarch",
          "Red Hat Hardened Images:polkit-main@src",
          "Red Hat Hardened Images:polkit-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-4897"
        },
        {
          "category": "external",
          "summary": "RHBZ#2451739",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451739"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-4897",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-4897"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-4897",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4897"
        }
      ],
      "release_date": "2026-03-26T12:34:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-09-10T01:41:30+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:polkit-main@aarch64",
            "Red Hat Hardened Images:polkit-main@noarch",
            "Red Hat Hardened Images:polkit-main@src",
            "Red Hat Hardened Images:polkit-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:66287"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
          "product_ids": [
            "Red Hat Hardened Images:polkit-main@aarch64",
            "Red Hat Hardened Images:polkit-main@noarch",
            "Red Hat Hardened Images:polkit-main@src",
            "Red Hat Hardened Images:polkit-main@x86_64"
          ]
        }
      ],
      "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:polkit-main@aarch64",
            "Red Hat Hardened Images:polkit-main@noarch",
            "Red Hat Hardened Images:polkit-main@src",
            "Red Hat Hardened Images:polkit-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "polkit: Polkit: Denial of Service via unbounded input processing through standard input"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Juthawong Naisanguansee"
          ]
        }
      ],
      "cve": "CVE-2026-85498",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "discovery_date": "2026-09-04T00:40:47.865000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2528347"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "No description is available for this CVE.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "polkit: Regression in CVE-2026-4897 fix (polkit read_cookie()) - stack buffer underflow",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue is classified as Low severity because there is no observable effect of the one byte out-of-bounds read. No information disclosure or affect to integrity has been demonstrated.",
          "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:polkit-main@aarch64",
          "Red Hat Hardened Images:polkit-main@noarch",
          "Red Hat Hardened Images:polkit-main@src",
          "Red Hat Hardened Images:polkit-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-85498"
        },
        {
          "category": "external",
          "summary": "RHBZ#2528347",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2528347"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-85498",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-85498"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-85498",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85498"
        }
      ],
      "release_date": "2026-09-04T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-09-10T01:41:30+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:polkit-main@aarch64",
            "Red Hat Hardened Images:polkit-main@noarch",
            "Red Hat Hardened Images:polkit-main@src",
            "Red Hat Hardened Images:polkit-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:66287"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the criteria for a mitigation as defined by the Red Hat Product Security team. This flaw remains subject to future review as new information becomes available. Exposure is limited: the defect is reachable only by a local/adjacent low-privileged user interacting with the polkit authentication agent and results at most in a crash (availability) of the affected process.",
          "product_ids": [
            "Red Hat Hardened Images:polkit-main@aarch64",
            "Red Hat Hardened Images:polkit-main@noarch",
            "Red Hat Hardened Images:polkit-main@src",
            "Red Hat Hardened Images:polkit-main@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 3.5,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:polkit-main@aarch64",
            "Red Hat Hardened Images:polkit-main@noarch",
            "Red Hat Hardened Images:polkit-main@src",
            "Red Hat Hardened Images:polkit-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "polkit: Regression in CVE-2026-4897 fix (polkit read_cookie()) - stack buffer underflow"
    }
  ]
}