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CVE-2026-86320 Flatpak-builder: host code execution via `git am` hook execution in patch source extraction (`use-git-am`)

🗓️ 17 Sep 2026 07:27:33Reported by redhatType 
cvelist
 cvelist
🔗 www.cve.org👁 66 Views

Host code execution in flatpak-builder via Git post-applypatch hook in use-git-am patch sources.

Related
Affected
Refs
[
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 10",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "flatpak-builder",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:1.4.4-1.el10_2.1",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:10.2"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "flatpak-builder",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:1.4.4-1.el10_0.1",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/o:redhat:enterprise_linux_eus:10.0"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "flatpak-builder",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:1.2.3-2.el8_10",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:8::appstream"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "flatpak-builder",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:1.0.9-4.el8_6",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:rhel_aus:8.6::appstream",
      "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "flatpak-builder",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:1.0.9-4.el8_6",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:rhel_aus:8.6::appstream",
      "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "flatpak-builder",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:1.0.14-3.el8_8",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:rhel_e4s:8.8::appstream",
      "cpe:/a:redhat:rhel_tus:8.8::appstream"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "flatpak-builder",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:1.0.14-3.el8_8",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:rhel_e4s:8.8::appstream",
      "cpe:/a:redhat:rhel_tus:8.8::appstream"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "flatpak-builder",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:1.2.3-1.el9_8.1",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:9::appstream"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "flatpak-builder",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:1.2.2-2.el9_2",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:rhel_e4s:9.2::appstream"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "flatpak-builder",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:1.2.3-2.el9_4",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:rhel_e4s:9.4::appstream"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "flatpak-builder",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:1.2.3-1.el9_6.1",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:rhel_eus:9.6::appstream"
    ]
  }
]

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28 Oct 2026 18:49Current
CVSS 3.17.8
EPSS0.00288
SSVC
66