VDB
DEBIAN-CVE-2026-26278
DEBIAN-CVE-2026-26278
PUBLISHED
CVSS 7.5 HIGH
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.
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | node-webfont | 11.4.0+dfsg2+~cs35.7.26-13, 11.4.0+dfsg2+~cs35.7.26-15, 11.4.0+dfsg2+~cs35.7.26-16 |
| Debian:13 | node-webfont | 11.4.0+dfsg2, 11.4.0+dfsg2+~cs35.7.26-14, 11.4.0+dfsg2+~cs35.7.26-15 |
| Debian:12 | node-webfont | 11.4.0+dfsg2, 11.4.0+dfsg2, 11.4.0+dfsg2 |
Timeline
- Feb 19, 2026 CVE Published
- Apr 28, 2026 CVE Updated