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
{
"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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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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