{
  "cveId": "CVE-2026-16517",
  "url": "https://patchblox.com/security/cve/CVE-2026-16517",
  "summary": "CVE-2026-16517 is fixed in 6 products on 1 platform, first by RHSA-2026:69553, released July 8, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Libarchive: libarchive: signed integer overflow in archive_write_zip_header",
  "description": "A signed integer overflow vulnerability was found in libarchive\u0027s ZIP writer. In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory corruption.",
  "published": "2026-07-03T00:00:00Z",
  "severity": "Low",
  "cvss": 3.9,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L",
  "cwe": "Integer Overflow or Wraparound",
  "epss": 0.00105,
  "epssPercentile": 0.01055,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-16517",
  "fixes": [
    {
      "platform": "linux",
      "product": "bsdtar",
      "release": "almalinux 10",
      "fixedVersion": "3.7.7-11.el10_2",
      "fix": "ALSA-2026:69553",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-69553",
      "released": "2026-09-21T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bsdtar",
      "release": "ol 10",
      "fixedVersion": "0:3.7.7-11.el10_2",
      "fix": "ELSA-2026-69553",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-69553",
      "released": "2026-09-23T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libarchive",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "3.6.2-1\u002Bdeb12u5",
      "fix": "DEBIAN-CVE-2026-16517",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-16517",
      "released": "2026-08-07T15:22:10Z"
    },
    {
      "platform": "linux",
      "product": "libarchive",
      "release": "Debian 14",
      "fixedVersion": "3.8.9-1",
      "fix": "DEBIAN-CVE-2026-16517",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-16517",
      "released": "2026-08-07T15:22:10Z"
    },
    {
      "platform": "linux",
      "product": "libarchive",
      "release": "RHEL 10",
      "fixedVersion": "3.7.7-11.el10_2",
      "fix": "RHSA-2026:69553",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-69553",
      "released": "2026-07-08T10:10:00Z"
    },
    {
      "platform": "linux",
      "product": "libarchive",
      "release": "almalinux 10",
      "fixedVersion": "3.7.7-11.el10_2",
      "fix": "ALSA-2026:69553",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-69553",
      "released": "2026-09-21T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libarchive",
      "release": "ol 10",
      "fixedVersion": "0:3.7.7-11.el10_2",
      "fix": "ELSA-2026-69553",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-69553",
      "released": "2026-09-23T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libarchive",
      "release": "rocky 10",
      "fixedVersion": "0:3.7.7-11.el10_2",
      "fix": "RLSA-2026:69553",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-69553",
      "released": "2026-09-23T18:07:43Z"
    },
    {
      "platform": "linux",
      "product": "libarchive-devel",
      "release": "almalinux 10",
      "fixedVersion": "3.7.7-11.el10_2",
      "fix": "ALSA-2026:69553",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-69553",
      "released": "2026-09-21T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libarchive-devel",
      "release": "ol 10",
      "fixedVersion": "0:3.7.7-11.el10_2",
      "fix": "ELSA-2026-69553",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-69553",
      "released": "2026-09-23T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libarchive-tools",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "3.6.0-1ubuntu1.9",
      "fix": "libarchive-tools 3.6.0-1ubuntu1.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libarchive-tools-3.6.0-1ubuntu1.9",
      "released": "2026-07-21T16:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libarchive-tools",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "3.7.2-2ubuntu0.9",
      "fix": "libarchive-tools 3.7.2-2ubuntu0.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libarchive-tools-3.7.2-2ubuntu0.9",
      "released": "2026-07-21T16:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libarchive-tools",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "3.8.5-1ubuntu2.3",
      "fix": "libarchive-tools 3.8.5-1ubuntu2.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libarchive-tools-3.8.5-1ubuntu2.3",
      "released": "2026-07-21T16:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libarchive13",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "3.6.0-1ubuntu1.9",
      "fix": "libarchive13 3.6.0-1ubuntu1.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libarchive13-3.6.0-1ubuntu1.9",
      "released": "2026-07-21T16:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libarchive13t64",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "3.7.2-2ubuntu0.9",
      "fix": "libarchive13t64 3.7.2-2ubuntu0.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libarchive13t64-3.7.2-2ubuntu0.9",
      "released": "2026-07-21T16:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libarchive13t64",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "3.8.5-1ubuntu2.3",
      "fix": "libarchive13t64 3.8.5-1ubuntu2.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libarchive13t64-3.8.5-1ubuntu2.3",
      "released": "2026-07-21T16:17:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}