Allocation of Resources Without Limits or Throttling Affecting github.com/authzed/spicedb/internal/datastore/revisions package, versions <1.45.2
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- published11 Nov 2025
- disclosed10 Nov 2025
- creditUnknown
Introduced: 10 Nov 2025
NewCVE-2025-64529 Â (opens in a new tab)How to fix?
Upgrade github.com/authzed/spicedb/internal/datastore/revisions to version 1.45.2 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the WriteRelationships function when the exclusion operator is used in the authorization schema and the server is configured with --write-relationships-max-updates-per-call greater than 6500. An attacker can cause the system to return a successful response for a failed operation, leading to incorrect permission checks by submitting a payload that exceeds the datastore's allowed size. This is only exploitable if the exclusion operator is present in the schema and the server configuration allows more than 6500 updates per call.
Workaround
This vulnerability can be mitigated by setting --write-relationships-max-updates-per-call to 1000.