{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-83610","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-08-31T20:36:25.743Z","datePublished":"2026-09-01T14:31:49.409Z","dateUpdated":"2026-09-03T16:00:03.283Z"},"containers":{"cna":{"title":"xmldom: XML fragment injection via invalid EntityReference.nodeName during requireWellFormed serialization","problemTypes":[{"descriptions":[{"cweId":"CWE-116","lang":"en","description":"CWE-116: Improper Encoding or Escaping of Output","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/xmldom/xmldom/security/advisories/GHSA-6gmq-8vp8-gcm6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/xmldom/xmldom/security/advisories/GHSA-6gmq-8vp8-gcm6"},{"name":"https://github.com/xmldom/xmldom/pull/1071","tags":["x_refsource_MISC"],"url":"https://github.com/xmldom/xmldom/pull/1071"},{"name":"https://github.com/xmldom/xmldom/pull/1072","tags":["x_refsource_MISC"],"url":"https://github.com/xmldom/xmldom/pull/1072"},{"name":"https://github.com/xmldom/xmldom/commit/4664386e4f4d99d17b416a151dbe8323e245284b","tags":["x_refsource_MISC"],"url":"https://github.com/xmldom/xmldom/commit/4664386e4f4d99d17b416a151dbe8323e245284b"},{"name":"https://github.com/xmldom/xmldom/commit/6c3fb5ffeafe7901ec928ce9010988dd716c94a0","tags":["x_refsource_MISC"],"url":"https://github.com/xmldom/xmldom/commit/6c3fb5ffeafe7901ec928ce9010988dd716c94a0"},{"name":"https://github.com/xmldom/xmldom/releases/tag/0.8.15","tags":["x_refsource_MISC"],"url":"https://github.com/xmldom/xmldom/releases/tag/0.8.15"},{"name":"https://github.com/xmldom/xmldom/releases/tag/0.9.12","tags":["x_refsource_MISC"],"url":"https://github.com/xmldom/xmldom/releases/tag/0.9.12"}],"affected":[{"vendor":"xmldom","product":"xmldom","versions":[{"version":"<= 0.6.0","status":"affected"}]},{"vendor":"@xmldom","product":"xmldom","versions":[{"version":">= 0.7.0, < 0.8.15","status":"affected"},{"version":">= 0.9.0, < 0.9.12","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-01T14:31:49.409Z"},"descriptions":[{"lang":"en","value":"xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom version 0.6.0 and earlier, Document.createEntityReference(name) accepts an invalid name and the ENTITY_REFERENCE_NODE serializer emits the resulting nodeName directly in &name; form. Directly serializing the node or fragment with XMLSerializer.serializeToString() and requireWellFormed: true can therefore break the entity-reference boundary and produce attacker-controlled XML markup when reparsed. The parser does not ordinarily create these nodes, and element-child insertion is rejected, so exploitation requires an application to create and directly serialize an EntityReference. This issue is fixed in @xmldom/xmldom versions 0.8.15 and 0.9.12; no fixed version is available for xmldom."}],"source":{"advisory":"GHSA-6gmq-8vp8-gcm6","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/xmldom/xmldom/security/advisories/GHSA-6gmq-8vp8-gcm6","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-03T15:59:56.681108Z","id":"CVE-2026-83610","options":[{"Exploitation":"poc"},{"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":"2026-09-03T16:00:03.283Z"}}]}}