An incomplete fix for CVE-2026-50645 means that it is still possible to perform a denial of service attack on Apache CXF by sending a message with many attachment headers. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.
{
"cwe_ids": [
"CWE-400"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64958.json",
"cna_assigner": "apache",
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "4.2.0"
},
{
"fixed": "4.2.3"
},
{
"introduced": "4.0.0"
},
{
"fixed": "4.1.8"
},
{
"fixed": "3.6.12"
}
],
"source": "AFFECTED_FIELD"
}
]
}{
"cpe": "cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "3.6.12"
},
{
"introduced": "4.0.0"
},
{
"fixed": "4.1.8"
},
{
"introduced": "4.2.0"
},
{
"fixed": "4.2.3"
}
],
"source": "CPE_RANGE"
}