{"id":"UBUNTU-CVE-2023-26920","details":"fast-xml-parser before 4.1.2 allows __proto__ for Prototype Pollution.","modified":"2026-05-20T16:07:35.968765344Z","published":"2023-12-12T17:15:00Z","upstream":["CVE-2023-26920"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-26920"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-26920"},{"type":"REPORT","url":"https://gist.github.com/Sudistark/a5a45bd0804d522a1392cb5023aa7ef7"},{"type":"REPORT","url":"https://github.com/NaturalIntelligence/fast-xml-parser/commit/2b032a4f799c63d83991e4f992f1c68e4dd05804"}],"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_name":"node-webfont","binary_version":"11.4.0+dfsg2+~cs35.7.26-7ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-26920.json"}},{"package":{"name":"node-webfont","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/node-webfont?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["11.4.0+dfsg2+~cs35.7.26-10","11.4.0+dfsg2+~cs35.7.26-13ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"11.4.0+dfsg2+~cs35.7.26-13ubuntu2","binary_name":"node-webfont"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-26920.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_name":"node-webfont","binary_version":"11.4.0+dfsg2+~cs35.7.26-18"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-26920.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}