[KAFKA-14062] OAuth client token refresh fails with SASL extensions

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1.0, 3.2.0, 3.1.1, 3.3.0
• Fix Version/s: 3.3.0, 3.1.2, 3.2.1
• Component/s: admin, clients, consumer, producer , security
• Labels: OAuth
• Assignee: Kirk True
• Reporter: Kirk True
• Reviewer: Stanislav Kozlovski
• Created: 09/Jul/22 18:52
• Updated: 07/Jun/24 17:59
• Resolved: 12/Jul/22 09:06

Description

While testing OAuth for Connect an issue surfaced where authentication that was successful initially fails during token refresh. This appears to be due to missing SASL extensions on refresh, though those extensions were present on initial authentication.

During token refresh, the Kafka client adds and removes any SASL extensions. If a refresh is attempted during the window when the extensions are not present in the subject, the refresh fails with the following error:

[2022-04-11 20:33:43,250] INFO [AdminClient clientId=adminclient-8] Failed authentication with <host>/<IP> (Authentication failed: 1 extensions are invalid! They are: xxx: Authentication failed) (org.apache.kafka.common.network.Selector)

Issue Links

• links to: GitHub Pull Request #12398