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vuln-cve/data/2026/73xxx/CVE-2026-73569.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-73569",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-08-12T20:53:46.381Z",
"datePublished": "2026-08-13T17:45:25.045Z",
"dateUpdated": "2026-08-13T18:40:13.283Z"
},
"containers": {
"cna": {
"title": "fast-xml-parser: Repeated DOCTYPE declarations reset entity expansion limits",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-776",
"lang": "en",
"description": "CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0"
}
}
],
"references": [
{
"name": "https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-8r6m-32jq-jx6q",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-8r6m-32jq-jx6q"
},
{
"name": "https://github.com/NaturalIntelligence/fast-xml-parser/commit/4e546e03987662de5495d050b5fba26bea65383f",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/NaturalIntelligence/fast-xml-parser/commit/4e546e03987662de5495d050b5fba26bea65383f"
},
{
"name": "https://github.com/NaturalIntelligence/fast-xml-parser/releases/tag/v5.10.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/NaturalIntelligence/fast-xml-parser/releases/tag/v5.10.1"
}
],
"affected": [
{
"vendor": "NaturalIntelligence",
"product": "fast-xml-parser",
"versions": [
{
"version": ">= 5.9.3, < 5.10.1",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-08-13T17:45:25.045Z"
},
"descriptions": [
{
"lang": "en",
"value": "fast-xml-parser allows users to process XML from JS object without C/C++ based libraries or callbacks. From 5.9.3 until 5.10.1, src/xmlparser/OrderedObjParser.js processes multiple DOCTYPE declarations within a single XML document and passes each declaration's entities through addInputEntities(). addInputEntities() resets maxTotalExpansions and maxExpandedLength every time it is called, allowing additional DOCTYPE declarations to repeatedly reset the configured entity-expansion limits during one parse operation. A crafted XML document can then cause excessive CPU use, event-loop blocking, memory exhaustion, and process termination. This issue is fixed in version 5.10.1."
}
],
"source": {
"advisory": "GHSA-8r6m-32jq-jx6q",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-08-13T18:39:55.393516Z",
"id": "CVE-2026-73569",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-08-13T18:40:13.283Z"
}
}
]
}
}