CVE-2026-100300 Apache ZooKeeper: Unauthenticated persistent denial of service via unvalidated quota-node data and paths crashing the transaction-apply thread

Improper handling of exceptional conditions in the quota subsystem of Apache ZooKeeper allows an attacker able to write under the /zookeeper/quota subtree — unauthenticated on default deployments, where that subtree is world-writable — to crash the server's critical request-processing thread and...

CVE-2026-100300

Improper handling of exceptional conditions in the quota subsystem of Apache ZooKeeper allows an attacker able to write under the /zookeeper/quota subtree — unauthenticated on default deployments, where that subtree is world-writable — to crash the server's critical request-processing thread and...

CVE-2026-100300

Apache ZooKeeper versions up to and including 3.9.6 are vulnerable to an unauthenticated persistent denial of service . The root cause is the improper handling of exceptional conditions in the quota subsystem (DataTree/StatsTrack/Quotas). An attacker can write unvalidated quota-node data and path...