{
  "cveId": "CVE-2026-5745",
  "url": "https://patchblox.com/security/cve/CVE-2026-5745",
  "summary": "CVE-2026-5745 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2026-5745, released April 7, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libarchive13: A flaw was found in libarchive",
  "description": "A flaw was found in libarchive. A NULL pointer dereference vulnerability exists in the ACL parsing logic, specifically within the archive_acl_from_text_nl() function. When processing a malformed ACL string (such as a bare \u0022d\u0022 or \u0022default\u0022 tag without subsequent fields), the function fails to perform adequate validation before advancing the pointer. An attacker can exploit this by providing a maliciously crafted archive, causing an application utilizing the libarchive API (such as bsdtar) to crash, resulting in a Denial of Service (DoS).",
  "published": "2026-04-07T09:16:00Z",
  "severity": "Medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
  "epss": 0.00167,
  "epssPercentile": 0.05972,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libarchive",
      "release": "Debian 14",
      "fixedVersion": "3.8.8-1",
      "fix": "DEBIAN-CVE-2026-5745",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-5745",
      "released": "2026-04-07T16:16:32Z"
    },
    {
      "platform": "linux",
      "product": "libarchive-tools",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "3.4.0-2ubuntu1.5\u002Besm3",
      "fix": "libarchive-tools 3.4.0-2ubuntu1.5\u002Besm3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libarchive-tools-3.4.0-2ubuntu1.5-esm3",
      "released": "2026-07-24T13:34:49Z"
    },
    {
      "platform": "linux",
      "product": "libarchive-tools",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "3.6.0-1ubuntu1.8",
      "fix": "libarchive-tools 3.6.0-1ubuntu1.8",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libarchive-tools-3.6.0-1ubuntu1.8",
      "released": "2026-07-24T13:34:51Z"
    },
    {
      "platform": "linux",
      "product": "libarchive-tools",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "3.7.2-2ubuntu0.8",
      "fix": "libarchive-tools 3.7.2-2ubuntu0.8",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libarchive-tools-3.7.2-2ubuntu0.8",
      "released": "2026-07-24T13:34:54Z"
    },
    {
      "platform": "linux",
      "product": "libarchive-tools",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "3.8.5-1ubuntu2.2",
      "fix": "libarchive-tools 3.8.5-1ubuntu2.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libarchive-tools-3.8.5-1ubuntu2.2",
      "released": "2026-07-10T03:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libarchive13",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "3.4.0-2ubuntu1.5\u002Besm3",
      "fix": "libarchive13 3.4.0-2ubuntu1.5\u002Besm3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libarchive13-3.4.0-2ubuntu1.5-esm3",
      "released": "2026-07-24T13:34:49Z"
    },
    {
      "platform": "linux",
      "product": "libarchive13",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "3.6.0-1ubuntu1.8",
      "fix": "libarchive13 3.6.0-1ubuntu1.8",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libarchive13-3.6.0-1ubuntu1.8",
      "released": "2026-07-24T13:34:51Z"
    },
    {
      "platform": "linux",
      "product": "libarchive13t64",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "3.7.2-2ubuntu0.8",
      "fix": "libarchive13t64 3.7.2-2ubuntu0.8",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libarchive13t64-3.7.2-2ubuntu0.8",
      "released": "2026-07-24T13:34:54Z"
    },
    {
      "platform": "linux",
      "product": "libarchive13t64",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "3.8.5-1ubuntu2.2",
      "fix": "libarchive13t64 3.8.5-1ubuntu2.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libarchive13t64-3.8.5-1ubuntu2.2",
      "released": "2026-07-10T03:16:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}