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Fast-xml-parser

13 CVEs tracked. None of them is in CISA KEV.

This hub aggregates every CVE we track for Fast-xml-parser, a product in the oss libraries space. Use it to gauge the current risk picture and drill into individual advisories.

Fast-xml-parser CVEs per month

Nov 2024 to Oct 2026. Point at a month, or focus the strip and use the arrow keys.
Fast-xml-parser CVEs per month
MonthCVEs
2024-110
2024-120
2025-010
2025-020
2025-030
2025-040
2025-050
2025-060
2025-070
2025-080
2025-090
2025-100
2025-110
2025-120
2026-011
2026-023
2026-032
2026-040
2026-051
2026-060
2026-071
2026-081
2026-090
2026-100

Severity

How the 13 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.

  • Critical110%
  • High660%
  • Medium330%

Latest CVEs

The 13 most recently published vulnerabilities affecting Fast-xml-parser.

  1. CVE-2026-73569fast-xml-parser: Repeated DOCTYPE declarations reset entity expansion limits—
  2. GHSA-8r6m-32jq-jx6qfast-xml-parser: Repeated DOCTYPE declarations reset entity expansion limits—
  3. CVE-2026-41650fast-xml-parser XMLBuilder: XML Comment and CDATA Injection via Unescaped Delimiters6.1
  4. CVE-2026-33349fast-xml-parser: Entity Expansion Limits Bypassed When Set to Zero Due to JavaScript Falsy Evaluation5.9
  5. CVE-2026-33036fast-xml-parser affected by numeric entity expansion bypassing all entity expansion limits (incomplete fix for CVE-2026-26278)7.5
  6. CVE-2026-27942fast-xml-parser has stack overflow in XMLBuilder with preserveOrder7.5
  7. CVE-2026-25896fast-xml-parser has an entity encoding bypass via regex injection in DOCTYPE entity names9.3
  8. CVE-2026-26278fast-xml-parser affected by DoS through entity expansion in DOCTYPE (no expansion limit)7.5
  9. CVE-2026-25128fast-xml-parser has RangeError DoS Numeric Entities Bug7.5
  10. CVE-2024-41818ReDOS at currency parsing fast-xml-parser7.5
  11. CVE-2023-26920fast-xml-parser before 4.1.2 allows __proto__ for Prototype Pollution.6.5
  12. GHSA-gpv5-7x3g-ghjvfast-xml-parser regex vulnerability patch could be improved from a safety perspective—
  13. CVE-2023-34104Regex Injection via Doctype Entities7.5

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