Description
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. Prior to version 5.3.8, the application crashes with stack overflow when user use XML builder with `preserveOrder:true`. Version 5.3.8 fixes the issue. As a workaround, use XML builder with `preserveOrder:false` or check the input data before passing to builder.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| NaturalIntelligence | fast-xml-parser | < 5.3.8 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | node-webfont | No fix yet | — |
| Debian 13 | node-webfont | No fix yet | — |
| Debian 12 | node-webfont | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | node-webfont | No fix yet | — |
| Ubuntu 26.04 LTS | node-webfont | No fix yet | — |
| Ubuntu 25.10 | node-webfont | No fix yet | — |
| Ubuntu 24.04 LTS | node-webfont | No fix yet | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | jitsucom-jitsu-console | 2.11.0-r16 | — |
| Wolfi rolling | kubeflow-pipelines-frontend | 2.16.0-r2 | — |
| Wolfi rolling | opensearch-dashboards-3 | 3.5.0-r3 | — |
| Wolfi rolling | prism | 5.14.3-r8 | — |
| Wolfi rolling | renovate | 43.48.3-r0 | — |
| Wolfi rolling | saf | 1.6.0-r0 | — |
| Wolfi rolling | tileserver-gl | 5.5.0-r6 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | fast-xml-parser | >= 5.0.0, < 5.3.8 | 5.3.8 | GHSA-fj3w-jwp8-x2g3 |
| npm | fast-xml-parser | >= 4.0.0-beta.0, < 4.5.4 | 4.5.4 | GHSA-fj3w-jwp8-x2g3 |
Advisories 1
- SCA-2026-0014 Fast-xml-parser vulnerabilities affect Sentio Creator Extension 'Device Manager' SICK PSIRT · Oct 14, 2026