{
  "cveId": "CVE-2026-32316",
  "url": "https://patchblox.com/security/cve/CVE-2026-32316",
  "summary": "CVE-2026-32316 is fixed in 5 products on 1 platform, first by jq 1.5\u002Bdfsg-2ubuntu0.1~esm2, released April 13, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "jq: Integer overflow in jvp_string_append() allows Heap-based Buffer Overflow",
  "description": "jq is a command-line JSON processor. An integer overflow vulnerability exists through version 1.8.1 within the jvp_string_append() and jvp_string_copy_replace_bad functions, where concatenating strings with a combined length exceeding 2^31 bytes causes a 32-bit unsigned integer overflow in the buffer allocation size calculation, resulting in a drastically undersized heap buffer. Subsequent memory copy operations then write the full string data into this undersized buffer, causing a heap buffer overflow classified as CWE-190 (Integer Overflow) leading to CWE-122 (Heap-based Buffer Overflow). Any system evaluating untrusted jq queries is affected, as an attacker can crash the process or potentially achieve further exploitation through heap corruption by crafting queries that produce extremely large strings. The root cause is the absence of string size bounds checking, unlike arrays and objects which already have size limits. The issue has been addressed in commit e47e56d226519635768e6aab2f38f0ab037c09e5.",
  "published": "2026-04-13T11:16:00Z",
  "severity": "Important",
  "cvss": 8.2,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cwe": "Heap-based Buffer Overflow",
  "epss": 0.00791,
  "epssPercentile": 0.56538,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32316",
  "fixes": [
    {
      "platform": "linux",
      "product": "jq",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1.6-2.1\u002Bdeb12u3",
      "fix": "DEBIAN-CVE-2026-32316",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-32316",
      "released": "2026-04-13T18:16:29Z"
    },
    {
      "platform": "linux",
      "product": "jq",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.7.1-6\u002Bdeb13u3",
      "fix": "DEBIAN-CVE-2026-32316",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-32316",
      "released": "2026-04-13T18:16:29Z"
    },
    {
      "platform": "linux",
      "product": "jq",
      "release": "Debian 14",
      "fixedVersion": "1.8.1-5",
      "fix": "DEBIAN-CVE-2026-32316",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-32316",
      "released": "2026-04-13T18:16:29Z"
    },
    {
      "platform": "linux",
      "product": "jq",
      "release": "Fedora 43",
      "fixedVersion": "1.8.1-3.fc43",
      "fix": "FEDORA-2026-4E57162966",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-4e57162966",
      "released": "2026-04-16T14:02:18Z"
    },
    {
      "platform": "linux",
      "product": "jq",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.5\u002Bdfsg-2ubuntu0.1~esm2",
      "fix": "jq 1.5\u002Bdfsg-2ubuntu0.1~esm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-jq-1.5-dfsg-2ubuntu0.1-esm2",
      "released": "2026-04-13T17:16:00Z"
    },
    {
      "platform": "linux",
      "product": "jq",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.6-1ubuntu0.20.04.1\u002Besm2",
      "fix": "jq 1.6-1ubuntu0.20.04.1\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-jq-1.6-1ubuntu0.20.04.1-esm2",
      "released": "2026-04-13T17:16:00Z"
    },
    {
      "platform": "linux",
      "product": "jq",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.6-2.1ubuntu3.2",
      "fix": "jq 1.6-2.1ubuntu3.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-jq-1.6-2.1ubuntu3.2",
      "released": "2026-04-13T17:16:00Z"
    },
    {
      "platform": "linux",
      "product": "jq",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.7.1-3ubuntu0.24.04.2",
      "fix": "jq 1.7.1-3ubuntu0.24.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-jq-1.7.1-3ubuntu0.24.04.2",
      "released": "2026-04-13T17:16:00Z"
    },
    {
      "platform": "linux",
      "product": "jq",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.8.1-3ubuntu1.1",
      "fix": "jq 1.8.1-3ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-jq-1.8.1-3ubuntu1.1",
      "released": "2026-04-13T17:16:00Z"
    },
    {
      "platform": "linux",
      "product": "jq",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.8.1-4ubuntu2",
      "fix": "jq 1.8.1-4ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-jq-1.8.1-4ubuntu2",
      "released": "2026-04-13T17:16:00Z"
    },
    {
      "platform": "linux",
      "product": "jq",
      "release": "amzn 2023",
      "fixedVersion": "1.8.1-59.amzn2023",
      "fix": "ALAS2023-2026-1815",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1815",
      "released": "2026-06-08T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "jq",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.7.1-160000.3.1",
      "fix": "OPENSUSE-SU-2026:21248-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21248-1",
      "released": "2026-07-07T12:32:56Z"
    },
    {
      "platform": "linux",
      "product": "jq",
      "release": "sles 15.7",
      "fixedVersion": "1.6-150000.3.20.1",
      "fix": "SUSE-SU-2026:2983-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2983-1",
      "released": "2026-07-14T13:19:54Z"
    },
    {
      "platform": "linux",
      "product": "jq",
      "release": "sles 16.0",
      "fixedVersion": "1.7.1-160000.3.1",
      "fix": "SUSE-SU-2026:22566-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22566-1",
      "released": "2026-07-07T12:32:43Z"
    },
    {
      "platform": "linux",
      "product": "jq-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1.8.1-3.fc43",
      "fix": "FEDORA-2026-4E57162966",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-4e57162966",
      "released": "2026-04-16T14:02:18Z"
    },
    {
      "platform": "linux",
      "product": "jq-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1.8.1-59.amzn2023",
      "fix": "ALAS2023-2026-1815",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1815",
      "released": "2026-06-08T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "jq-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "1.8.1-3.fc43",
      "fix": "FEDORA-2026-4E57162966",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-4e57162966",
      "released": "2026-04-16T14:02:18Z"
    },
    {
      "platform": "linux",
      "product": "jq-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "1.8.1-59.amzn2023",
      "fix": "ALAS2023-2026-1815",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1815",
      "released": "2026-06-08T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "jq-devel",
      "release": "Fedora 43",
      "fixedVersion": "1.8.1-3.fc43",
      "fix": "FEDORA-2026-4E57162966",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-4e57162966",
      "released": "2026-04-16T14:02:18Z"
    },
    {
      "platform": "linux",
      "product": "jq-devel",
      "release": "amzn 2023",
      "fixedVersion": "1.8.1-59.amzn2023",
      "fix": "ALAS2023-2026-1815",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1815",
      "released": "2026-06-08T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libjq1",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.5\u002Bdfsg-2ubuntu0.1~esm2",
      "fix": "libjq1 1.5\u002Bdfsg-2ubuntu0.1~esm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libjq1-1.5-dfsg-2ubuntu0.1-esm2",
      "released": "2026-04-13T17:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libjq1",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.6-1ubuntu0.20.04.1\u002Besm2",
      "fix": "libjq1 1.6-1ubuntu0.20.04.1\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libjq1-1.6-1ubuntu0.20.04.1-esm2",
      "released": "2026-04-13T17:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libjq1",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.6-2.1ubuntu3.2",
      "fix": "libjq1 1.6-2.1ubuntu3.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libjq1-1.6-2.1ubuntu3.2",
      "released": "2026-04-13T17:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libjq1",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.7.1-3ubuntu0.24.04.2",
      "fix": "libjq1 1.7.1-3ubuntu0.24.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libjq1-1.7.1-3ubuntu0.24.04.2",
      "released": "2026-04-13T17:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libjq1",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.8.1-3ubuntu1.1",
      "fix": "libjq1 1.8.1-3ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libjq1-1.8.1-3ubuntu1.1",
      "released": "2026-04-13T17:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libjq1",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.8.1-4ubuntu2",
      "fix": "libjq1 1.8.1-4ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libjq1-1.8.1-4ubuntu2",
      "released": "2026-04-13T17:16:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}