CVE-2026-59739

Apache ZooKeeper is vulnerable to information disclosure due to a missing ACL check in the SetWatches reconnect replay handler. An attacker can discover ACL-restricted paths by registering exists-watches on non-existent paths and then reconnecting after those paths are created with restricted ACL...

CVE-2026-59739: Missing Authorization

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...

PT-2026-93406

Name of the Vulnerable Software and Affected Versions Apache ZooKeeper versions prior to 3.9.6 Apache ZooKeeper versions prior to 3.8.7 Description An information disclosure issue exists due to a missing Access Control List ACL check during the SetWatches reconnect replay. An attacker can discove...