CVE-2026-40612

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Source
https://cve.org/CVERecord?id=CVE-2026-40612
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40612.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-40612
Aliases
  • GHSA-r7m6-x9c7-h69j
Downstream
Related
Published
2026-05-11T17:16:25.453Z
Modified
2026-07-09T10:14:45.184103312Z
Severity
  • 5.4 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P CVSS Calculator
Summary
jq: Stack overflow via unbounded recursion in jv_contains
Details

jq is a command-line JSON processor. In 1.8.1 and earlier, jv_contains recurses into nested arrays/objects with no depth limit. With a sufficiently nested input structure (built programmatically with reduce, since the JSON parser caps at depth 10000), the C stack is exhausted.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40612.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-674"
    ]
}
References

Affected packages

Git / github.com/jqlang/jq

Affected ranges

Type
GIT
Repo
https://github.com/jqlang/jq
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
4467af7068b1bcd7f882defff6e7ea674c5357f4
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ],
    "cpe": "cpe:2.3:a:jqlang:jq:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.8.1"
        }
    ]
}

Affected versions

1.*
1.6rc2
jq-1.*
jq-1.0
jq-1.1
jq-1.2
jq-1.3
jq-1.4
jq-1.5rc1
jq-1.5rc2
jq-1.6
jq-1.6rc1
jq-1.7
jq-1.7.1
jq-1.7rc1
jq-1.7rc2
jq-1.8.0
jq-1.8.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40612.json"