{
  "cveId": "CVE-2026-54370",
  "url": "https://patchblox.com/security/cve/CVE-2026-54370",
  "summary": "CVE-2026-54370 is fixed in 7 products on 1 platform, first by DEBIAN-CVE-2026-54370, released July 3, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "acl: acl before version 2.4.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability that allows lo...",
  "description": "acl before version 2.4.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link between an lstat() check and subsequent symlink-following operations such as stat(), chown(), chmod(), acl_get_file(), and acl_set_file(). Attackers who control a pathname component can redirect file access control list operations to arbitrary files when getfacl, setfacl, or chacl is invoked by a privileged process over an attacker-controlled path, resulting in local privilege escalation.",
  "published": "2026-06-29T13:00:00Z",
  "severity": "moderate",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
  "epss": 0.00088,
  "epssPercentile": 0.00368,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "acl",
      "release": "Debian 14",
      "fixedVersion": "2.4.0-1",
      "fix": "DEBIAN-CVE-2026-54370",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-54370",
      "released": "2026-07-03T14:54:39Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "Fedora 43",
      "fixedVersion": "2.4.0-1.fc43",
      "fix": "FEDORA-2026-67504C329B",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-67504c329b",
      "released": "2026-07-09T08:50:32Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "RHEL 10",
      "fixedVersion": "2.4.0-1.el10_2",
      "fix": "RHSA-2026:42739",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-42739",
      "released": "2026-07-22T13:17:20Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "RHEL 8",
      "fixedVersion": "0:2.4.0-1.el8_10",
      "fix": "RHSA-2026:43420",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-43420",
      "released": "2026-07-23T13:24:47Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "RHEL 9",
      "fixedVersion": "0:2.4.0-1.el9_8",
      "fix": "RHSA-2026:42736",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-42736",
      "released": "2026-07-22T13:17:20Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "almalinux 10",
      "fixedVersion": "2.4.0-1.el10_2",
      "fix": "ALSA-2026:42739",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-42739",
      "released": "2026-07-21T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "almalinux 8",
      "fixedVersion": "2.4.0-1.el8_10",
      "fix": "ALSA-2026:43420",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-43420",
      "released": "2026-07-22T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "almalinux 9",
      "fixedVersion": "2.4.0-1.el9_8",
      "fix": "ALSA-2026:42736",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-42736",
      "released": "2026-07-21T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "amzn 2023",
      "fixedVersion": "2.4.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-1986",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1986",
      "released": "2026-07-20T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "ol 10",
      "fixedVersion": "0:2.4.0-1.el10_2",
      "fix": "ELSA-2026-42739",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-42739",
      "released": "2026-07-21T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "ol 8",
      "fixedVersion": "0:2.4.0-1.el8_10",
      "fix": "ELSA-2026-43420",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-43420",
      "released": "2026-07-22T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "ol 9",
      "fixedVersion": "0:2.4.0-1.el9_8",
      "fix": "ELSA-2026-42736",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-42736",
      "released": "2026-07-21T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "2.4.0-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21832-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21832-1",
      "released": "2026-09-11T11:45:57Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "rocky 10",
      "fixedVersion": "0:2.4.0-1.el10_2",
      "fix": "RLSA-2026:42739",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-42739",
      "released": "2026-07-22T12:05:54Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "rocky 8",
      "fixedVersion": "0:2.4.0-1.el8_10",
      "fix": "RLSA-2026:43420",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-43420",
      "released": "2026-07-23T06:01:03Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "rocky 9",
      "fixedVersion": "0:2.4.0-1.el9_8",
      "fix": "RLSA-2026:42736",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-42736",
      "released": "2026-07-22T12:03:41Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "sles 15.6",
      "fixedVersion": "2.4.0-150000.4.6.1",
      "fix": "SUSE-SU-2026:4176-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4176-1",
      "released": "2026-09-14T10:30:55Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "sles 15.7",
      "fixedVersion": "2.4.0-150000.4.6.1",
      "fix": "SUSE-SU-2026:4176-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4176-1",
      "released": "2026-09-14T10:30:55Z"
    },
    {
      "platform": "linux",
      "product": "acl",
      "release": "sles 16.0",
      "fixedVersion": "2.4.0-160000.1.1",
      "fix": "SUSE-SU-2026:23726-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23726-1",
      "released": "2026-09-11T11:46:37Z"
    },
    {
      "platform": "linux",
      "product": "acl-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "2.4.0-1.fc43",
      "fix": "FEDORA-2026-67504C329B",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-67504c329b",
      "released": "2026-07-09T08:50:32Z"
    },
    {
      "platform": "linux",
      "product": "acl-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2.4.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-1986",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1986",
      "released": "2026-07-20T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "acl-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "2.4.0-1.fc43",
      "fix": "FEDORA-2026-67504C329B",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-67504c329b",
      "released": "2026-07-09T08:50:32Z"
    },
    {
      "platform": "linux",
      "product": "acl-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "2.4.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-1986",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1986",
      "released": "2026-07-20T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "attr",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "2.6.0-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21832-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21832-1",
      "released": "2026-09-11T11:45:57Z"
    },
    {
      "platform": "linux",
      "product": "attr",
      "release": "sles 15.6",
      "fixedVersion": "2.6.0-150000.4.3.1",
      "fix": "SUSE-SU-2026:4176-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4176-1",
      "released": "2026-09-14T10:30:55Z"
    },
    {
      "platform": "linux",
      "product": "attr",
      "release": "sles 15.7",
      "fixedVersion": "2.6.0-150000.4.3.1",
      "fix": "SUSE-SU-2026:4176-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4176-1",
      "released": "2026-09-14T10:30:55Z"
    },
    {
      "platform": "linux",
      "product": "attr",
      "release": "sles 16.0",
      "fixedVersion": "2.6.0-160000.1.1",
      "fix": "SUSE-SU-2026:23726-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23726-1",
      "released": "2026-09-11T11:46:37Z"
    },
    {
      "platform": "linux",
      "product": "libacl",
      "release": "Fedora 43",
      "fixedVersion": "2.4.0-1.fc43",
      "fix": "FEDORA-2026-67504C329B",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-67504c329b",
      "released": "2026-07-09T08:50:32Z"
    },
    {
      "platform": "linux",
      "product": "libacl",
      "release": "RHEL 8",
      "fixedVersion": "0:2.4.0-1.el8_10",
      "fix": "RHSA-2026:43420",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-43420",
      "released": "2026-07-23T13:24:47Z"
    },
    {
      "platform": "linux",
      "product": "libacl",
      "release": "RHEL 9",
      "fixedVersion": "0:2.4.0-1.el9_8",
      "fix": "RHSA-2026:42736",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-42736",
      "released": "2026-07-22T13:17:20Z"
    },
    {
      "platform": "linux",
      "product": "libacl",
      "release": "almalinux 10",
      "fixedVersion": "2.4.0-1.el10_2",
      "fix": "ALSA-2026:42739",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-42739",
      "released": "2026-07-21T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libacl",
      "release": "almalinux 8",
      "fixedVersion": "2.4.0-1.el8_10",
      "fix": "ALSA-2026:43420",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-43420",
      "released": "2026-07-22T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libacl",
      "release": "almalinux 9",
      "fixedVersion": "2.4.0-1.el9_8",
      "fix": "ALSA-2026:42736",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-42736",
      "released": "2026-07-21T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libacl",
      "release": "amzn 2023",
      "fixedVersion": "2.4.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-1986",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1986",
      "released": "2026-07-20T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libacl",
      "release": "ol 10",
      "fixedVersion": "0:2.4.0-1.el10_2",
      "fix": "ELSA-2026-42739",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-42739",
      "released": "2026-07-21T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libacl",
      "release": "ol 8",
      "fixedVersion": "0:2.4.0-1.el8_10",
      "fix": "ELSA-2026-43420",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-43420",
      "released": "2026-07-22T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libacl",
      "release": "ol 9",
      "fixedVersion": "0:2.4.0-1.el9_8",
      "fix": "ELSA-2026-42736",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-42736",
      "released": "2026-07-21T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libacl-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "2.4.0-1.fc43",
      "fix": "FEDORA-2026-67504C329B",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-67504c329b",
      "released": "2026-07-09T08:50:32Z"
    },
    {
      "platform": "linux",
      "product": "libacl-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2.4.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-1986",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1986",
      "released": "2026-07-20T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libacl-devel",
      "release": "Fedora 43",
      "fixedVersion": "2.4.0-1.fc43",
      "fix": "FEDORA-2026-67504C329B",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-67504c329b",
      "released": "2026-07-09T08:50:32Z"
    },
    {
      "platform": "linux",
      "product": "libacl-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:2.4.0-1.el8_10",
      "fix": "RHSA-2026:43420",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-43420",
      "released": "2026-07-23T13:24:47Z"
    },
    {
      "platform": "linux",
      "product": "libacl-devel",
      "release": "RHEL 9",
      "fixedVersion": "0:2.4.0-1.el9_8",
      "fix": "RHSA-2026:42736",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-42736",
      "released": "2026-07-22T13:17:20Z"
    },
    {
      "platform": "linux",
      "product": "libacl-devel",
      "release": "almalinux 10",
      "fixedVersion": "2.4.0-1.el10_2",
      "fix": "ALSA-2026:42739",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-42739",
      "released": "2026-07-21T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libacl-devel",
      "release": "almalinux 8",
      "fixedVersion": "2.4.0-1.el8_10",
      "fix": "ALSA-2026:43420",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-43420",
      "released": "2026-07-22T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libacl-devel",
      "release": "almalinux 9",
      "fixedVersion": "2.4.0-1.el9_8",
      "fix": "ALSA-2026:42736",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-42736",
      "released": "2026-07-21T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libacl-devel",
      "release": "amzn 2023",
      "fixedVersion": "2.4.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-1986",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1986",
      "released": "2026-07-20T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libacl-devel",
      "release": "ol 10",
      "fixedVersion": "0:2.4.0-1.el10_2",
      "fix": "ELSA-2026-42739",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-42739",
      "released": "2026-07-21T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libacl-devel",
      "release": "ol 8",
      "fixedVersion": "0:2.4.0-1.el8_10",
      "fix": "ELSA-2026-43420",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-43420",
      "released": "2026-07-22T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libacl-devel",
      "release": "ol 9",
      "fixedVersion": "0:2.4.0-1.el9_8",
      "fix": "ELSA-2026-42736",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-42736",
      "released": "2026-07-21T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}