xmlregexp in libxml2 before 2.15.4 has a NULL pointer dereference in xmlRegNewParserCtxt after a strdup failure, i.e., it does not calculate a string length after NULL checking.
{
"cna_assigner": "mitre",
"cwe_ids": [
"CWE-252"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86141.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.15.4"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "e89a8aae4c9b40cdafcf66b3f9e57c62db37bb55"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
{
"extracted_events": [
{
"cpe": "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.15.4"
}
],
"source": "CPE_RANGE"
}
]
}