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CVE-2025-55315 (CRITICAL): detected in Lambda Docker Images. #333

@the-lambda-watchdog

Description

@the-lambda-watchdog

CVE Details

CVE ID Severity Affected Package Installed Version Fixed Version Date Published Date of Scan
CVE-2025-55315 CRITICAL Microsoft.AspNetCore.App.Runtime.linux-x64 9.0.9 10.0.0-rc.2.25502.107, 9.0.10, 8.0.21 2025-10-14T17:15:44.96Z 2025-10-15T10:18:18.85980241Z

Affected Docker Images

Image Name SHA
public.ecr.aws/lambda/dotnet:latest public.ecr.aws/lambda/dotnet@sha256:2f5f8cefa06decf77f044d2e2547a3796d32e36d1074e9af342cca3f431db761
public.ecr.aws/lambda/dotnet:10-preview public.ecr.aws/lambda/dotnet@sha256:42082beb8d59e791623981f894ecfb9286413178fd2541ccb8c85488b66fac28
public.ecr.aws/lambda/dotnet:9 public.ecr.aws/lambda/dotnet@sha256:2f5f8cefa06decf77f044d2e2547a3796d32e36d1074e9af342cca3f431db761
public.ecr.aws/lambda/dotnet:8 public.ecr.aws/lambda/dotnet@sha256:df95ced9d1b4e777fd23379b2cc9ca5f50df5fd7f915c5a79c1c124a05e24ab0

Description

Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an authorized attacker to bypass a security feature over a network.


Remediation Steps

  • Update the affected package Microsoft.AspNetCore.App.Runtime.linux-x64 from version 9.0.9 to 10.0.0-rc.2.25502.107, 9.0.10, 8.0.21.

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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