jq is a command-line JSON processor. Prior to 1.8.2, on 32bit system, jvpstringappend has a chance of integer/multiple overflowing and then causing a massive buffer overrun. This vulnerability is fixed in 1.8.2.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54679.json",
"cwe_ids": [
"CWE-190"
],
"cna_assigner": "GitHub_M"
}{
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
],
"cpe": "cpe:2.3:a:jqlang:jq:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.8.2"
}
]
}