roxmltree through 0.21.1 performs quadratic-time attribute and namespace validation during XML parsing without limits on attribute count. Attackers can craft XML documents with tens of thousands of attributes on a single element to consume excessive CPU time and cause denial of service.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-407"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92987.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "0.21.1"
},
{
"fixed": "0.21.1"
}
],
"source": [
"AFFECTED_FIELD",
"DESCRIPTION"
]
}