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GCE_METADATA_HOST env does not work with IPv6 addresses #2591

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#2592
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GCE_METADATA_HOST env does not work with IPv6 addresses#2591
#2592
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priority: p2Moderately-important priority. Fix may not be included in next release.type: bugError or flaw in code with unintended results or allowing sub-optimal usage patterns.
@marqc

Description

@marqc
marqc
opened on Jun 6, 2025

Steps to reproduce

  1. Set custom GCE_METADATA_HOST env variable to IPv6 address, i.e. ::1
  2. Observe application is trying to call invalid URL http://::1 instead of expected http://[::1]

google-api-java-client/google-api-client/src/main/java/com/google/api/client/googleapis/auth/oauth2/OAuth2Utils.java

Line 108 in 7ccb2fc

return "http://" + metadataServerAddress;

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    priority: p2Moderately-important priority. Fix may not be included in next release.type: bugError or flaw in code with unintended results or allowing sub-optimal usage patterns.

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