{"apiVersion":"1.0","identifier":"CVE-2026-47080","description":"XML Injection vulnerability in joshnuss xml_builder (XmlBuilder module) allows Content Spoofing, XML Injection. This vulnerability is associated with program files lib/xml_builder.ex and program routines XmlBuilder.generate/1, XmlBuilder.generate/2, XmlBuilder.escape/1. The 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. This issue affects xml_builder: from 0.0.7 before 2.4.1.","publishedAt":"2026-08-21T10:16:38","lastModifiedAt":"2026-08-24T16:47:56","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-47080","cvssScore":2.1,"cvssVector":"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","epssProbability":0.00167,"riskScore":0.21,"affectedProduct":"xml_builder","affectedVersions":">=0.0.7,<2.4.1","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-47080","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-47080","en":"https://www.redsauce.net/en/cves/CVE-2026-47080","fr":"https://www.redsauce.net/fr/cves/CVE-2026-47080","pt":"https://www.redsauce.net/pt/cves/CVE-2026-47080","de":"https://www.redsauce.net/de/cves/CVE-2026-47080","sk":"https://www.redsauce.net/sk/cves/CVE-2026-47080","el":"https://www.redsauce.net/el/cves/CVE-2026-47080"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-47080"}}