Using expressions that generate large arrays it is possible to craft a query that creates very large intermediate objects in memory, causing the server to crash with OOM error.
{
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "8.0"
},
{
"fixed": "8.0.28"
},
{
"introduced": "8.3.0"
},
{
"fixed": "8.3.7"
}
],
"source": "AFFECTED_FIELD"
}
],
"cna_assigner": "mongodb",
"cwe_ids": [
"CWE-1325"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13056.json"
}