{
  "cveId": "CVE-2026-56392",
  "url": "https://patchblox.com/security/cve/CVE-2026-56392",
  "summary": "CVE-2026-56392 is fixed in 3 products on 1 platform, first by RHSA-2026:67886, released July 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Heap-based Buffer Overflow in GNU coreutils",
  "description": "The coreutils packages contain the GNU Core Utilities and represent a combination of the previously used GNU fileutils, sh-utils, and textutils packages.\n\nBug Fix(es) and Enhancement(s):\n\n* Fix execution of the downstream tests in coreutils-df-direct.patch and coreutils-i18n.patch [rhel-8.10.z] (JIRA:RHEL-151533)\n\n* unexpand: stack overflow with large tabsizes [rhel-8.10.z] (JIRA:RHEL-182699)",
  "published": "2026-07-24T07:44:54Z",
  "severity": "Low",
  "cvss": 6.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
  "cwe": "Heap-based Buffer Overflow",
  "epss": 0.00186,
  "epssPercentile": 0.08257,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56392",
  "fixes": [
    {
      "platform": "linux",
      "product": "coreutils",
      "release": "RHEL 10",
      "fixedVersion": "9.5-8.el10_2.1",
      "fix": "RHSA-2026:67886",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-67886",
      "released": "2026-07-24T07:44:54Z"
    },
    {
      "platform": "linux",
      "product": "coreutils",
      "release": "RHEL 8",
      "fixedVersion": "0:8.30-20.el8_10",
      "fix": "RHBA-2026:47115",
      "url": "https://patchblox.com/security/fix/linux/rhba-2026-47115",
      "released": "2026-07-31T14:18:39Z"
    },
    {
      "platform": "linux",
      "product": "coreutils",
      "release": "RHEL 9",
      "fixedVersion": "0:8.32-41.el9_8.1",
      "fix": "RHSA-2026:66403",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-66403",
      "released": "2026-09-13T12:48:01Z"
    },
    {
      "platform": "linux",
      "product": "coreutils",
      "release": "almalinux 10",
      "fixedVersion": "9.5-8.el10_2.1",
      "fix": "ALSA-2026:67886",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-67886",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "coreutils",
      "release": "almalinux 9",
      "fixedVersion": "8.32-41.el9_8.1",
      "fix": "ALSA-2026:66403",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-66403",
      "released": "2026-09-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "coreutils",
      "release": "ol 10",
      "fixedVersion": "0:9.5-8.0.1.el10_2.1",
      "fix": "ELSA-2026-67886",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-67886",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "coreutils",
      "release": "ol 9",
      "fixedVersion": "0:8.32-41.0.1.el9_8.1",
      "fix": "ELSA-2026-66403-0",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-66403-0",
      "released": "2026-09-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "coreutils",
      "release": "rocky 10",
      "fixedVersion": "0:9.5-8.el10_2.1",
      "fix": "RLSA-2026:67886",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-67886",
      "released": "2026-09-17T12:10:28Z"
    },
    {
      "platform": "linux",
      "product": "coreutils",
      "release": "rocky 9",
      "fixedVersion": "0:8.32-41.el9_8.1",
      "fix": "RLSA-2026:66403",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-66403",
      "released": "2026-09-11T12:05:57Z"
    },
    {
      "platform": "linux",
      "product": "coreutils-common",
      "release": "RHEL 8",
      "fixedVersion": "0:8.30-20.el8_10",
      "fix": "RHBA-2026:47115",
      "url": "https://patchblox.com/security/fix/linux/rhba-2026-47115",
      "released": "2026-07-31T14:18:39Z"
    },
    {
      "platform": "linux",
      "product": "coreutils-common",
      "release": "almalinux 10",
      "fixedVersion": "9.5-8.el10_2.1",
      "fix": "ALSA-2026:67886",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-67886",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "coreutils-common",
      "release": "almalinux 9",
      "fixedVersion": "8.32-41.el9_8.1",
      "fix": "ALSA-2026:66403",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-66403",
      "released": "2026-09-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "coreutils-common",
      "release": "ol 10",
      "fixedVersion": "0:9.5-8.0.1.el10_2.1",
      "fix": "ELSA-2026-67886",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-67886",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "coreutils-common",
      "release": "ol 9",
      "fixedVersion": "0:8.32-41.0.1.el9_8.1",
      "fix": "ELSA-2026-66403-0",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-66403-0",
      "released": "2026-09-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "coreutils-single",
      "release": "RHEL 8",
      "fixedVersion": "0:8.30-20.el8_10",
      "fix": "RHBA-2026:47115",
      "url": "https://patchblox.com/security/fix/linux/rhba-2026-47115",
      "released": "2026-07-31T14:18:39Z"
    },
    {
      "platform": "linux",
      "product": "coreutils-single",
      "release": "RHEL 9",
      "fixedVersion": "0:8.32-41.el9_8.1",
      "fix": "RHSA-2026:66403",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-66403",
      "released": "2026-09-13T12:48:01Z"
    },
    {
      "platform": "linux",
      "product": "coreutils-single",
      "release": "almalinux 10",
      "fixedVersion": "9.5-8.el10_2.1",
      "fix": "ALSA-2026:67886",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-67886",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "coreutils-single",
      "release": "almalinux 9",
      "fixedVersion": "8.32-41.el9_8.1",
      "fix": "ALSA-2026:66403",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-66403",
      "released": "2026-09-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "coreutils-single",
      "release": "ol 10",
      "fixedVersion": "0:9.5-8.0.1.el10_2.1",
      "fix": "ELSA-2026-67886",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-67886",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "coreutils-single",
      "release": "ol 9",
      "fixedVersion": "0:8.32-41.0.1.el9_8.1",
      "fix": "ELSA-2026-66403-0",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-66403-0",
      "released": "2026-09-10T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T01:44:33Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}