usn-8202-2
Vulnerability from osv_ubuntu
Published
2026-04-28 04:18
Modified
2026-06-30 15:55
Summary
jq vulnerabilities
Details

USN-8202-1 fixed vulnerabilities in jq. This update provides the corresponding update to Ubuntu 26.04 LTS.

Original advisory details:

It was discovered that jq did not correctly handle certain string concatenations. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-32316)

It was discovered that jq did not correctly handle recursion in certain circumstances. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-33947)

It was discovered that jq did not correctly handle improperly terminated strings. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-33948)

It was discovered that jq did not correctly handle checking certain variable types. An attacker could possibly use this issue to cause a denial of service or leak sensitive information. (CVE-2026-39956)

It was discovered that jq did not correctly handle certain string formatting. An attacker could possibly use this issue to leak sensitive information or cause a denial of service. (CVE-2026-39979)

It was discovered that jq used a fixed seed for hash table operations. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-40164)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-32316",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-33947",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-33948",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-39956",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-39979",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40164",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "jq",
            "binary_version": "1.8.1-4ubuntu2"
          },
          {
            "binary_name": "libjq1",
            "binary_version": "1.8.1-4ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "jq",
        "purl": "pkg:deb/ubuntu/jq@1.8.1-4ubuntu2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.8.1-4ubuntu2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.8.1-3ubuntu1",
        "1.8.1-4ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-8202-1 fixed vulnerabilities in jq. This update provides the\ncorresponding update to Ubuntu 26.04 LTS.\n\nOriginal advisory details:\n\n It was discovered that jq did not correctly handle certain string\n concatenations. An attacker could possibly use this issue to cause a\n denial  of service or execute arbitrary code. (CVE-2026-32316)\n\n It was discovered that jq did not correctly handle recursion in certain\n circumstances. An attacker could possibly use this issue to cause a denial\n of service. (CVE-2026-33947)\n\n It was discovered that jq did not correctly handle improperly terminated\n strings. An attacker could possibly use this issue to cause a denial of\n service or execute arbitrary code. (CVE-2026-33948)\n\n It was discovered that jq did not correctly handle checking certain\n variable types. An attacker could possibly use this issue to cause a\n denial  of service or leak sensitive information. (CVE-2026-39956)\n\n It was discovered that jq did not correctly handle certain string\n formatting. An attacker could possibly use this issue to leak sensitive\n information or cause a denial of service. (CVE-2026-39979)\n\n It was discovered that jq used a fixed seed for hash table operations. An\n attacker could possibly use this issue to cause a denial of service.\n (CVE-2026-40164)",
  "id": "USN-8202-2",
  "modified": "2026-06-30T15:55:18Z",
  "published": "2026-04-28T04:18:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8202-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-32316"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-33947"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-33948"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-39956"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-39979"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40164"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "jq vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-32316",
    "UBUNTU-CVE-2026-33947",
    "UBUNTU-CVE-2026-33948",
    "UBUNTU-CVE-2026-39956",
    "UBUNTU-CVE-2026-39979",
    "UBUNTU-CVE-2026-40164"
  ]
}



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