CVSS 3.1 Score 9.1 of 10 (high)


Published Oct 11, 2023
Updated: Feb 21, 2024
CWE ID 639


CVE-2023-44981 is a cyber vulnerability that affects Apache ZooKeeper. The vulnerability allows an attacker to bypass authorization through a user-controlled key. If SASL Quorum Peer authentication is enabled, an arbitrary endpoint could join the cluster and gain complete read-write access to the data tree, posing a high danger to organizations. To remediate this vulnerability, users are advised to upgrade to versions 3.9.1, 3.8.3, or 3.7.2 of Apache ZooKeeper. Alternatively, organizations can mitigate the issue by protecting ensemble election/quorum communication with a firewall.

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