HIGH🇬🇧 English

CVE-2026-26278

CVSS 7.5v3.1pub. 2026-02-19upd. 2026-06-30

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. In versions 4.1.3 through 5.3.5, the XML parser can be forced to do an unlimited amount of entity expansion. With a very small XML input, it’s possible to make the parser spend seconds or even minutes processing a single request, effectively freezing the application. Version 5.3.6 fixes the issue. As a workaround, avoid using DOCTYPE parsing by `processEntities: false` option.

oryginał EN
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Naturalintelligence Fast Xml Parser

    APP
    Naturalintelligence
    4.1.3 – 5.3.6 (bez)
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CWE
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CVE-2026-26278 — HIGH 7.5 | CVEbaza.pl