etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.26 and 3.5.9, the LeaseTimeToLive API allows access to key names (not value) associated to a lease when `Keys` parameter is true, even a user doesn't have read permission to the keys. The impact is limited to a cluster which enables auth (RBAC). Versions 3.4.26 and 3.5.9 fix this issue. There are no known workarounds.
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Link | Tags |
---|---|
https://github.com/etcd-io/etcd/security/advisories/GHSA-3p4g-rcw5-8298 | vendor advisory |
https://github.com/etcd-io/etcd/pull/15656 | patch issue tracking |
https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.4.md | release notes |
https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.5.md | release notes |