{"id":"CVE-2026-41650","sourceIdentifier":"security-advisories@github.com","published":"2026-05-07T15:16:07.767","lastModified":"2026-06-17T10:46:56.607","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"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."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"NaturalIntelligence","product":"fast-xml-parser","versions":[{"version":"< 5.7.0","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":2.7}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-05-07T15:08:09.204375Z","id":"CVE-2026-41650","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-91"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:naturalintelligence:fast-xml-parser:*:*:*:*:*:*:*:*","versionEndExcluding":"5.7.0","matchCriteriaId":"182D0133-9479-411F-A055-EABFBBF62B78"}]}]}],"references":[{"url":"https://github.com/NaturalIntelligence/fast-xml-parser/releases/tag/v5.6.0","source":"security-advisories@github.com","tags":["Product","Release Notes"]},{"url":"https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-gh4j-gqv2-49f6","source":"security-advisories@github.com","tags":["Exploit","Mitigation","Vendor Advisory"]},{"url":"https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-gh4j-gqv2-49f6","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Mitigation","Vendor Advisory"]}]}