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GO-2026-6114
go.etcd.io/etcd/server/v3go.etcd.io/etcd/server/v3go.etcd.io/etcd/server/v3In go.etcd.io/etcd/server/v3 before 3.5.33, 3.6.14, and 3.7.1, an authenticated user with READ permission on a single key can bypass RBAC restrictions by initiating an open-ended range watch using clientv3.WithFromKey(). The Watch RPC handler normalized open-ended range ends prior to authorization checks, causing isWatchPermitted to evaluate the request as a single-key watch while the underlying watch stream received events for all keys lexicographically greater than or equal to the target key.
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Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.
No exploitation activity has been observed at this time. Continue routine monitoring.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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