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fast-xml-parser may execute unwanted code
published 3 months ago
Summary
The fast-xml-parser library used in your projects could be made to run code that an attacker provides. This could let an attacker affect the system that processes XML data. Update to version 4.4.0‑tuxcare.1 or later to apply the fixes.
What to do
- Update GitHub Actions fast-xml-parser to version 4.4.0-tuxcare.1.
- Update fast-xml-parser to version 4.4.0-tuxcare.1.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| TuxCare:npm | GitHub Actions | fast-xml-parser |
< 4.4.0-tuxcare.1 Fix: upgrade to 4.4.0-tuxcare.1
|
| TuxCare:npm | – | fast-xml-parser |
< 4.4.0-tuxcare.1 Fix: upgrade to 4.4.0-tuxcare.1
|
Original advisory text
TuxCare security update for fast-xml-parser (7 CVEs)
TuxCare rebuilt fast-xml-parser to address 7 CVEs. Fixed in 4.4.0-tuxcare.1.
Timeline
Published4 Aug 2026
Updated15 Sep 2026
First seen12 Sep 2026
Sources
CLSA-2026-1781744139 · OSV
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