EUVD-2026-80330

Information disclosure via SetWatches reconnect replay in Apache ZooKeeper due to missing ACL check. An attacker can discover ACL-restricted paths by registering exists-watches on non-existent paths, then reconnecting after the paths are created with restricted ACLs. Issue is caused by incomplete...

CVE-2026-59739

Apache ZooKeeper has an information disclosure vulnerability in the DataTree.setWatches() reconnect replay handler (SetWatches/SetWatches2). This is an incomplete fix for CVE-2024-23944 (ZOOKEEPER-4799): the prior patch added an ACL check in WatchManager.triggerWatch(), but DataTree.setWatches() ...