{"cve":"CVE-2026-44665","nvd":{"published":"2026-05-13T16:16:59.093","modified":"2026-10-26T18:10:00.173","status":"Deferred","description":"fast-xml-builder builds XML from JSON. Prior to 1.1.7, when an input data has quotes in attribute values but process entities is not enabled, it breaks the attribute value into multiple attributes. This gives the room for an attacker to insert unwanted attributes to the XML/HTML. This vulnerability is fixed in 1.1.7.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-91"],"references":["https://github.com/NaturalIntelligence/fast-xml-builder/security/advisories/GHSA-5wm8-gmm8-39j9","https://github.com/NaturalIntelligence/fast-xml-builder/security/advisories/GHSA-5wm8-gmm8-39j9"],"products":[],"source":"nvd","synced_at":"2026-10-26T18:27:13.530666824+00:00"},"epss":{"cve":"CVE-2026-44665","score":0.00209,"percentile":0.10966,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-5wm8-gmm8-39j9","url":"https://osv.dev/vulnerability/GHSA-5wm8-gmm8-39j9","summary":"fast-xml-builder allows attribute values with unwanted quotes to bypass malicious or unwanted attributes","modified":"2026-09-10T03:51:04.681237011Z","packages":[{"ecosystem":"npm","name":"fast-xml-builder","purl":"pkg:npm/fast-xml-builder","ranges":["<1.1.7"],"fixed":["1.1.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}