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chore(deps): update dependency fast-xml-parser to v5.3.8 [security]#705

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chore(deps): update dependency fast-xml-parser to v5.3.8 [security]#705
renovate[bot] wants to merge 1 commit intomainfrom
renovate/npm-fast-xml-parser-vulnerability

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@renovate renovate bot commented Feb 28, 2026

This PR contains the following updates:

Package Change Age Confidence
fast-xml-parser 5.3.75.3.8 age confidence

GitHub Vulnerability Alerts

CVE-2026-27942

Impact

Application crashes with stack overflow when user use XML builder with prserveOrder:true for following or similar input:

[{
    'foo': [
        { 'bar': [{ '@​_V': 'baz' }] }
    ]
}]

Cause: arrToStr was not validating if the input is an array or a string and treating all non-array values as text content.
What kind of vulnerability is it? Who is impacted?

Patches

Yes, in 5.3.8.

Workarounds

Use XML builder with preserveOrder:false or check the input data before passing to builder.

References

Are there any links users can visit to find out more?


Release Notes

NaturalIntelligence/fast-xml-parser (fast-xml-parser)

v5.3.8: handle non-array input for XML builder && support maxNestedTags

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@renovate renovate bot added the dependencies Pull requests that update a dependency file label Feb 28, 2026
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