[REGRESSION]: Docker@2 "unexpected token"

[pixelnix]

New issue checklist

• I searched for existing GitHub issues
• I read pipeline troubleshooting guide
• I checked how to collect logs

Task name

Docker

Breaking task version

2.264.0

Last working task version

2.263.1

Regression Description

Error in the docker task is preventing pipeline completion:

2025-11-18T17:13:51.9558320Z ##[error]Unhandled: Unexpected token .
2025-11-18T17:13:51.9566907Z ##[error]C:\azagent\A3_work_tasks\Docker_e28912f1-0114-4464-802a-a3a35437fd16\2.264.0\node_modules@azure\msal-node\lib\msal-node.cjs:48
tenantProfiles: accountEntity.tenantProfiles?.map((tenantProfile) => {

this seems to be a regression of #21351

Environment type (Please select at least one enviroment where you face this issue)

• Self-Hosted
• Microsoft Hosted
• VMSS Pool
• Container

Azure DevOps Server type

dev.azure.com (formerly visualstudio.com)

Azure DevOps Server Version (if applicable)

No response

Operation system

windows-latest

Relevant log output

2025-11-18T17:13:51.9558320Z ##[error]Unhandled: Unexpected token .
2025-11-18T17:13:51.9566907Z ##[error]C:\azagent\A3\_work\_tasks\Docker_e28912f1-0114-4464-802a-a3a35437fd16\2.264.0\node_modules\@azure\msal-node\lib\msal-node.cjs:48
                tenantProfiles: accountEntity.tenantProfiles?.map((tenantProfile) => {

Full task logs with system.debug enabled

UNSUCCESSFUL RUN

 [REPLACE THIS WITH YOUR INFORMATION] 

SUCCESSFUL RUN

 [REPLACE THIS WITH YOUR INFORMATION] 

Repro steps