CVE-2026-47080

{"id": "CVE-2026-47080", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-47080", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-21T12:30:05.428465Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 2.1, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "LOW", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "LOW", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "affectedData": [{"cpes": ["cpe:2.3:a:joshnuss:xml_builder:*:*:*:*:*:*:*:*"], "repo": "https://github.com/joshnuss/xml_builder", "vendor": "joshnuss", "modules": ["'Elixir.XmlBuilder'"], "product": "xml_builder", "versions": [{"status": "affected", "version": "0.0.7", "lessThan": "2.4.1", "versionType": "semver"}], "packageURL": "pkg:hex/xml_builder", "packageName": "xml_builder", "programFiles": ["lib/xml_builder.ex"], "collectionURL": "https://repo.hex.pm", "defaultStatus": "unaffected", "programRoutines": [{"name": "'Elixir.XmlBuilder':generate/1"}, {"name": "'Elixir.XmlBuilder':generate/2"}, {"name": "'Elixir.XmlBuilder':escape/1"}]}, {"cpes": ["cpe:2.3:a:joshnuss:xml_builder:*:*:*:*:*:*:*:*"], "repo": "https://github.com/joshnuss/xml_builder", "vendor": "joshnuss", "modules": ["'Elixir.XmlBuilder'"], "product": "xml_builder", "versions": [{"status": "affected", "version": "26766f884ed19adee1563522c7afb5f056a6f3b5", "lessThan": "bfb1ada071ccc1e384c30f782197ca5154106706", "versionType": "git"}], "packageURL": "pkg:github/joshnuss/xml_builder", "packageName": "joshnuss/xml_builder", "programFiles": ["lib/xml_builder.ex"], "collectionURL": "https://github.com", "defaultStatus": "unaffected", "programRoutines": [{"name": "'Elixir.XmlBuilder':generate/1"}, {"name": "'Elixir.XmlBuilder':generate/2"}, {"name": "'Elixir.XmlBuilder':escape/1"}]}]}], "published": "2026-08-21T10:16:38.497", "references": [{"url": "https://cna.erlef.org/cves/CVE-2026-47080.html", "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}, {"url": "https://github.com/joshnuss/xml_builder/commit/bfb1ada071ccc1e384c30f782197ca5154106706", "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}, {"url": "https://github.com/joshnuss/xml_builder/security/advisories/GHSA-67r9-hmxw-h595", "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}, {"url": "https://osv.dev/vulnerability/EEF-CVE-2026-47080", "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}, {"url": "https://vincent.vulcoord.net/score/?state=Not+Scored&year=2026&year=2025&assigned_to=88bc49d9-8ddd-4227-affc-a613e67abc4d&ordering=-published&cve=CVE-2026-47080", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "description": [{"lang": "en", "value": "CWE-91"}]}], "descriptions": [{"lang": "en", "value": "XML Injection vulnerability in joshnuss xml_builder (XmlBuilder module) allows Content Spoofing, XML Injection.\n\nThis vulnerability is associated with program files lib/xml_builder.ex and program routines XmlBuilder.generate/1, XmlBuilder.generate/2, XmlBuilder.escape/1.\n\nThe escape/1 clause for {:cdata, data} in lib/xml_builder.ex concatenates data verbatim between the CDATA opener <![CDATA[ and closer ]]> without rewriting or splitting on the embedded ]]> sequence. Because CDATA sections have no internal escape mechanism, the only safe way to embed arbitrary bytes is to split on ]]> and emit adjacent CDATA sections. An attacker who can supply input containing ]]> closes the CDATA section early; any bytes that follow are parsed as ordinary XML markup by downstream consumers, allowing injection of arbitrary elements, text, or entity references into the output document.\n\nThis issue affects xml_builder: from 0.0.7 before 2.4.1."}, {"lang": "es", "value": "Una vulnerabilidad de inyecci\u00f3n XML en joshnuss xml_builder (m\u00f3dulo XmlBuilder) permite la suplantaci\u00f3n de contenido, inyecci\u00f3n XML.\n\nEsta vulnerabilidad est\u00e1 asociada con los archivos de programa lib/xml_builder.ex y las rutinas de programa XmlBuilder.generate/1, XmlBuilder.generate/2, XmlBuilder.escape/1.\n\nLa cl\u00e1usula escape/1 para {:cdata, data} en lib/xml_builder.ex concatena los datos textualmente entre el abridor CDATA <![CDATA[ y el cerrador ]]> sin reescribir ni dividir en la secuencia incrustada ]]>. Debido a que las secciones CDATA no tienen un mecanismo de escape interno, la \u00fanica forma segura de incrustar bytes arbitrarios es dividir en ]]> y emitir secciones CDATA adyacentes. Un atacante que puede proporcionar una entrada que contenga ]]> cierra la secci\u00f3n CDATA prematuramente; cualquier byte que siga se analiza como marcado XML ordinario por los consumidores posteriores, permitiendo la inyecci\u00f3n de elementos arbitrarios, texto o referencias de entidad en el documento de salida.\n\nEste problema afecta a xml_builder: desde 0.0.7 anterior a 2.4.1."}], "lastModified": "2026-10-16T15:10:00.103", "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}