CVE-2026-26278
NaturalIntelligence fast-xml-parser, Red Hat Advanced Cluster Security 4.8, Red Hat Advanced Cluster Security 4.9 취약점
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.
- 대응 우선순위
- 점검
- CVSS
- 7.5
- EPSS
- 0.84% 백분위 54.4% · 2026.08.03 기준
- CISA KEV
- 미등록
- 조치 기한
- -
- 공개일
- 2026.02.20