fast-xml-parser allows users to process XML from JS object without C/C++ based libraries or callbacks. Prior to version 5.7.0, XMLBuilder does not escape the "-->" sequence in comment content or the "]]>" sequence in CDATA sections when building XML from JavaScript objects. This allows XML injection when user-controlled data flows into comments or CDATA elements, leading to XSS, SOAP injection, or data manipulation. This issue has been patched in version 5.7.0.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-91"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41650.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:naturalintelligence:fast-xml-parser:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "5.7.0"
}
],
"source": "CPE_RANGE"
},
{
"original_tag": "v5.6.0",
"range": [
{
"fixed": "7cb49e51cd060caecf296fbf718a98d8c044c8c5"
}
],
"source": "REFERENCES_TAG"
}
]
}