{"schema_version":1,"title":"fast-xml-parser (npm) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 8 vulnerabilities in fast-xml-parser (npm): 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-73569, was published on 21 July 2026.","url":"https://junglewise.ai/threats/technologies/fast-xml-parser","json_url":"https://junglewise.ai/threats/technologies/fast-xml-parser.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/fast-xml-parser","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":1,"all_time":8,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":2,"last_365_days":4},"latest":[{"cve":"CVE-2026-73569","cvss":4,"epss":0.0051,"slug":"cve-2026-73569-fast-xml-parser-doctype-reset-entity-expansion-limits-bypass","title":"fast-xml-parser DOCTYPE reset entity expansion limits bypass","severity":"medium","exploited":false,"published_at":"2026-07-21T22:06:36+00:00","url":"https://junglewise.ai/threats/cve-2026-73569-fast-xml-parser-doctype-reset-entity-expansion-limits-bypass"},{"cvss":8.7,"slug":"naturalintelligence-fast-xml-parser-entity-expansion-limit-bypass-f53ef78f","title":"NaturalIntelligence fast-xml-parser entity expansion limit bypass","severity":"high","exploited":false,"published_at":"2026-07-21T22:06:36+00:00","url":"https://junglewise.ai/threats/naturalintelligence-fast-xml-parser-entity-expansion-limit-bypass-f53ef78f"},{"cve":"CVE-2026-41650","cvss":6.1,"epss":0.0027,"slug":"cve-2026-41650-naturalintelligence-fast-xml-parser-xml-injection-in-xmlbuilder","title":"NaturalIntelligence fast-xml-parser XML injection in XMLBuilder","severity":"medium","exploited":false,"published_at":"2026-05-07T15:16:07.767+00:00","url":"https://junglewise.ai/threats/cve-2026-41650-naturalintelligence-fast-xml-parser-xml-injection-in-xmlbuilder"},{"cve":"CVE-2026-25128","cvss":3.1,"epss":0.0058,"slug":"cve-2026-25128-naturalintelligence-fast-xml-parser-denial-of-service-via","title":"fast-xml-parser RangeError DoS in numeric entity handling","severity":"low","exploited":false,"published_at":"2026-01-30T20:10:14+00:00","url":"https://junglewise.ai/threats/cve-2026-25128-naturalintelligence-fast-xml-parser-denial-of-service-via"},{"cve":"CVE-2024-41818","cvss":3.1,"epss":0.0083,"slug":"cve-2024-41818-fast-xml-parser-regular-expression-denial-of-service-in-currency","title":"fast-xml-parser regular expression denial of service in currency parsing","severity":"low","exploited":false,"published_at":"2024-07-29T17:46:16+00:00","url":"https://junglewise.ai/threats/cve-2024-41818-fast-xml-parser-regular-expression-denial-of-service-in-currency"},{"slug":"fast-xml-parser-regex-validation-method-improves-safety-4da37c77","title":"fast-xml-parser regex validation method improves safety","severity":"info","exploited":false,"published_at":"2023-06-15T19:05:13+00:00","url":"https://junglewise.ai/threats/fast-xml-parser-regex-validation-method-improves-safety-4da37c77"},{"cve":"CVE-2023-34104","cvss":3.1,"epss":0.0114,"slug":"cve-2023-34104-fast-xml-parser-regex-injection-via-doctype-entities","title":"fast-xml-parser regex injection via DOCTYPE entities","severity":"low","exploited":false,"published_at":"2023-06-06T17:33:13+00:00","url":"https://junglewise.ai/threats/cve-2023-34104-fast-xml-parser-regex-injection-via-doctype-entities"},{"cve":"CVE-2021-26920","cvss":3.1,"epss":0.095,"slug":"cve-2021-26920-fast-xml-parser-prototype-pollution-via-tag-or-attribute-name","title":"Druid ingestion system Authenticated users can read data from other sources than intended","severity":"low","exploited":false,"published_at":"2021-08-13T15:21:50+00:00","url":"https://junglewise.ai/threats/cve-2021-26920-fast-xml-parser-prototype-pollution-via-tag-or-attribute-name"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":2},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"flowise (npm)","slug":"flowise","vulnerabilities":156,"url":"https://junglewise.ai/threats/technologies/flowise"},{"name":"vm2 (npm)","slug":"vm2","vulnerabilities":83,"url":"https://junglewise.ai/threats/technologies/vm2"},{"name":"@budibase/server (npm)","slug":"budibase-server","vulnerabilities":61,"url":"https://junglewise.ai/threats/technologies/budibase-server"},{"name":"directus (npm)","slug":"directus","vulnerabilities":60,"url":"https://junglewise.ai/threats/technologies/directus"},{"name":"nocodb (npm)","slug":"nocodb","vulnerabilities":55,"url":"https://junglewise.ai/threats/technologies/nocodb"},{"name":"hono (npm)","slug":"hono","vulnerabilities":54,"url":"https://junglewise.ai/threats/technologies/hono"},{"name":"parse-server (npm)","slug":"parse-server","vulnerabilities":42,"url":"https://junglewise.ai/threats/technologies/parse-server"},{"name":"dompurify (npm)","slug":"dompurify","vulnerabilities":39,"url":"https://junglewise.ai/threats/technologies/dompurify"},{"name":"ghost (npm)","slug":"ghost","vulnerabilities":39,"url":"https://junglewise.ai/threats/technologies/ghost"},{"name":"flowise-components (npm)","slug":"flowise-components","vulnerabilities":35,"url":"https://junglewise.ai/threats/technologies/flowise-components"},{"name":"astro (npm)","slug":"astro","vulnerabilities":30,"url":"https://junglewise.ai/threats/technologies/astro"},{"name":"@anthropic-ai/claude-code (npm)","slug":"anthropic-ai-claude-code","vulnerabilities":28,"url":"https://junglewise.ai/threats/technologies/anthropic-ai-claude-code"}],"technology":{"hub":true,"name":"fast-xml-parser (npm)","slug":"fast-xml-parser","vendor":{"name":"npm","slug":"npm","url":"https://junglewise.ai/threats/vendors/npm"},"aliases":[],"homepage":"https://www.npmjs.com/package/fast-xml-parser","repo_url":"https://github.com/NaturalIntelligence/fast-xml-parser","description":"A JavaScript library for validating and parsing XML data into JSON objects.","url":"https://junglewise.ai/threats/technologies/fast-xml-parser"},"most_severe":[{"cvss":8.7,"slug":"naturalintelligence-fast-xml-parser-entity-expansion-limit-bypass-f53ef78f","title":"NaturalIntelligence fast-xml-parser entity expansion limit bypass","severity":"high","exploited":false,"published_at":"2026-07-21T22:06:36+00:00","url":"https://junglewise.ai/threats/naturalintelligence-fast-xml-parser-entity-expansion-limit-bypass-f53ef78f"},{"cve":"CVE-2026-41650","cvss":6.1,"epss":0.0027,"slug":"cve-2026-41650-naturalintelligence-fast-xml-parser-xml-injection-in-xmlbuilder","title":"NaturalIntelligence fast-xml-parser XML injection in XMLBuilder","severity":"medium","exploited":false,"published_at":"2026-05-07T15:16:07.767+00:00","url":"https://junglewise.ai/threats/cve-2026-41650-naturalintelligence-fast-xml-parser-xml-injection-in-xmlbuilder"},{"cve":"CVE-2026-73569","cvss":4,"epss":0.0051,"slug":"cve-2026-73569-fast-xml-parser-doctype-reset-entity-expansion-limits-bypass","title":"fast-xml-parser DOCTYPE reset entity expansion limits bypass","severity":"medium","exploited":false,"published_at":"2026-07-21T22:06:36+00:00","url":"https://junglewise.ai/threats/cve-2026-73569-fast-xml-parser-doctype-reset-entity-expansion-limits-bypass"},{"cve":"CVE-2021-26920","cvss":3.1,"epss":0.095,"slug":"cve-2021-26920-fast-xml-parser-prototype-pollution-via-tag-or-attribute-name","title":"Druid ingestion system Authenticated users can read data from other sources than intended","severity":"low","exploited":false,"published_at":"2021-08-13T15:21:50+00:00","url":"https://junglewise.ai/threats/cve-2021-26920-fast-xml-parser-prototype-pollution-via-tag-or-attribute-name"},{"cve":"CVE-2023-34104","cvss":3.1,"epss":0.0114,"slug":"cve-2023-34104-fast-xml-parser-regex-injection-via-doctype-entities","title":"fast-xml-parser regex injection via DOCTYPE entities","severity":"low","exploited":false,"published_at":"2023-06-06T17:33:13+00:00","url":"https://junglewise.ai/threats/cve-2023-34104-fast-xml-parser-regex-injection-via-doctype-entities"},{"cve":"CVE-2024-41818","cvss":3.1,"epss":0.0083,"slug":"cve-2024-41818-fast-xml-parser-regular-expression-denial-of-service-in-currency","title":"fast-xml-parser regular expression denial of service in currency parsing","severity":"low","exploited":false,"published_at":"2024-07-29T17:46:16+00:00","url":"https://junglewise.ai/threats/cve-2024-41818-fast-xml-parser-regular-expression-denial-of-service-in-currency"},{"cve":"CVE-2026-25128","cvss":3.1,"epss":0.0058,"slug":"cve-2026-25128-naturalintelligence-fast-xml-parser-denial-of-service-via","title":"fast-xml-parser RangeError DoS in numeric entity handling","severity":"low","exploited":false,"published_at":"2026-01-30T20:10:14+00:00","url":"https://junglewise.ai/threats/cve-2026-25128-naturalintelligence-fast-xml-parser-denial-of-service-via"},{"slug":"fast-xml-parser-regex-validation-method-improves-safety-4da37c77","title":"fast-xml-parser regex validation method improves safety","severity":"info","exploited":false,"published_at":"2023-06-15T19:05:13+00:00","url":"https://junglewise.ai/threats/fast-xml-parser-regex-validation-method-improves-safety-4da37c77"}],"generated_at":"2026-09-27T03:07:00.185062+00:00"}