{"id":"UBUNTU-CVE-2026-73569","details":"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.","modified":"2026-08-19T13:34:46.439553485Z","published":"2026-08-13T18:18:00Z","upstream":["CVE-2026-73569"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-73569"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-73569"},{"type":"REPORT","url":"https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-8r6m-32jq-jx6q"},{"type":"REPORT","url":"https://github.com/NaturalIntelligence/fast-xml-parser/commit/4e546e03987662de5495d050b5fba26bea65383f"}],"affected":[{"package":{"name":"node-webfont","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/node-webfont?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["11.4.0+dfsg2+~cs35.7.26-7ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"11.4.0+dfsg2+~cs35.7.26-7ubuntu1","binary_name":"node-webfont"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73569.json"}},{"package":{"name":"node-webfont","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/node-webfont?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["11.4.0+dfsg2+~cs35.7.26-13ubuntu2","11.4.0+dfsg2+~cs35.7.26-14","11.4.0+dfsg2+~cs35.7.26-15","11.4.0+dfsg2+~cs35.7.26-16build1","11.4.0+dfsg2+~cs35.7.26-18"],"ecosystem_specific":{"binaries":[{"binary_version":"11.4.0+dfsg2+~cs35.7.26-18","binary_name":"node-webfont"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73569.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"},{"type":"Ubuntu","score":"medium"}]}