CVE-2026-25896 | fast-xml-parser allows users to validate XML, parse XML to JS object, or build XML from JS object without C/C++ based libraries and no callback. From 4.1.3to before 5.3.5, a dot (.) in a DOCTYPE entity name is treated as a regex wildcard during entity replacement, allowing an attacker to shadow built-in XML entities (<, >, &, ", ') with arbitrary values. This bypasses entity encoding and leads to XSS when parsed output is rendered. This vu
fast-xml-parser allows users to validate XML, parse XML to JS object, or build XML from JS object without C/C++ based libraries and no callback. From 4.1.3to before 5.3.5, a dot (.) in a DOCTYPE entity name is treated as a regex wildcard during entity replacement, allowing an attacker to shadow built-in XML entities (<, >, &, ", ') with arbitrary values. This bypasses entity encoding and leads to XSS when parsed output is rendered. This vulnerability is fixed in 5.3.5.
- 🔗 github.com/NaturalIntelligence/fast-xml-parser/secur…
- 🔗 github.com/NaturalIntelligence/fast-xml-parser/commi…
- 🔗 github.com/NaturalIntelligence/fast-xml-parser/commi…
- 🔗 github.com/NaturalIntelligence/fast-xml-parser/relea…
- 🔗 access.redhat.com/errata/RHSA-2026:40984
- 🔗 access.redhat.com/errata/RHSA-2026:41941
- 🔗 access.redhat.com/errata/RHSA-2026:41944
- 🔗 access.redhat.com/errata/RHSA-2026:51349
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📊 Historien-Charts — Criticals-Trend · Vendors · EPSS-Verteilung
| Tier | 2026-09-04 | 2026-09-21 |
|---|---|---|
| ≥90 % | 0 | 488 |
| ≥50 % | 0 | 1471 |
| ≥10 % | 0 | 7 |
| <10 % | 300 | 0 |
CVE-2026-25896 | fast-xml-parser allows users to validate XML, parse XML to JS object, or build XML from JS object without C/C++ based libraries and no callback. From 4.1.3to before 5.3.5, a dot (.) in a DOCTYPE entity name is treated as a regex wildcard during entity replacement, allowing an attacker to shadow built-in XML entities (<, >, &, ", ') with arbitrary values. This bypasses entity encoding and leads to XSS when parsed output is rendered. This vu
fast-xml-parser allows users to validate XML, parse XML to JS object, or build XML from JS object without C/C++ based libraries and no callback. From 4.1.3to before 5.3.5, a dot (.) in a DOCTYPE entity name is treated as a regex wildcard du
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