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open-vault/changelog/16324.txt

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Vault 6773/raft rejoin nonvoter (#16324) * raft: Ensure init before setting suffrage As reported in https://hashicorp.atlassian.net/browse/VAULT-6773: The /sys/storage/raft/join endpoint is intended to be unauthenticated. We rely on the seal to manage trust. It’s possible to use multiple join requests to switch nodes from voter to non-voter. The screenshot shows a 3 node cluster where vault_2 is the leader, and vault_3 and vault_4 are followers with non-voters set to false. sent two requests to the raft join endpoint to have vault_3 and vault_4 join the cluster with non_voters:true. This commit fixes the issue by delaying the call to SetDesiredSuffrage until after the initialization check, preventing unauthenticated mangling of voter status. Tested locally using https://github.com/hashicorp/vault-tools/blob/main/users/ncabatoff/cluster/raft.sh and the reproducer outlined in VAULT-6773. * raft: Return join err on failure This is necessary to correctly distinguish errors returned from the Join workflow. Previously, errors were being masked as timeouts. * raft: Default autopilot parameters in teststorage Change some defaults so we don't have to pass in parameters or set them in the originating tests. These storage types are only used in two places: 1) Raft HA testing 2) Seal migration testing Both consumers have been tested and pass with this change. * changelog: Unauthn voter status change bugfix
2022-07-18 18:37:12 +00:00
```release-note:bug
storage/raft (enterprise): Prevent unauthenticated voter status change with rejoin
```