{"cve":"CVE-2026-41650","nvd":{"published":"2026-05-07T15:16:07.767","modified":"2026-10-26T20:10:00.160","status":"Analyzed","description":"fast-xml-parser allows users to process XML from JS object without C/C++ based libraries or callbacks. Prior to version 5.7.0, XMLBuilder does not escape the \"-->\" sequence in comment content or the \"]]>\" sequence in CDATA sections when building XML from JavaScript objects. This allows XML injection when user-controlled data flows into comments or CDATA elements, leading to XSS, SOAP injection, or data manipulation. This issue has been patched in version 5.7.0.","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-parser/releases/tag/v5.6.0","https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-gh4j-gqv2-49f6","https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-gh4j-gqv2-49f6"],"products":["naturalintelligence:fast-xml-parser"],"source":"nvd","synced_at":"2026-10-26T20:34:58.897451322+00:00"},"epss":{"cve":"CVE-2026-41650","score":0.00238,"percentile":0.1475,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-gh4j-gqv2-49f6","url":"https://osv.dev/vulnerability/GHSA-gh4j-gqv2-49f6","summary":"fast-xml-parser XMLBuilder: XML Comment and CDATA Injection via Unescaped Delimiters","modified":"2026-09-10T03:51:01.693430465Z","packages":[{"ecosystem":"npm","name":"fast-xml-parser","purl":"pkg:npm/fast-xml-parser","ranges":["<5.7.0"],"fixed":["5.7.0"]}]}],"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."]}