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CVE-2026-27942 (LOW): detected in Lambda Docker Images. #430

@the-lambda-watchdog

Description

@the-lambda-watchdog

CVE Details

CVE ID Severity Affected Package Installed Version Fixed Version Date Published Date of Scan
CVE-2026-27942 LOW fast-xml-parser 5.3.4 5.3.8 2026-02-26T02:16:22.357Z 2026-02-27T10:18:22.081501916Z

Affected Docker Images

Image Name SHA
public.ecr.aws/lambda/nodejs:latest public.ecr.aws/lambda/nodejs@sha256:08a1a854f41c9cf47b752eb13df532388515ee7dea520ef7854b57a21f775aec
public.ecr.aws/lambda/nodejs:24 public.ecr.aws/lambda/nodejs@sha256:e9a2798c884e8b948ff0670c737c308dc194405986b8ada529155cb61dfbd9d7
public.ecr.aws/lambda/nodejs:22 public.ecr.aws/lambda/nodejs@sha256:08a1a854f41c9cf47b752eb13df532388515ee7dea520ef7854b57a21f775aec
public.ecr.aws/lambda/nodejs:20 public.ecr.aws/lambda/nodejs@sha256:d187370a830039ddcbf432924071c9f400c41ee69916d8d53b0571753bdd6b95

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.


Remediation Steps

  • Update the affected package fast-xml-parser from version 5.3.4 to 5.3.8.

About this issue

  • This issue may not contain all the information about the CVE nor the images it affects.
  • This issue will not be updated with new information and the list of affected images may have changed since the creation of this issue.
  • For more, visit Lambda Watchdog.
  • This issue was created automatically by Lambda Watchdog.

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