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Apache ZookeeperHostname verification in Apache ZooKeeper ZKTrustManager falls back to reverse DNS (PTR) when IP SAN…

Risk 33
Severity
7
First published (updated )
REDHAT-BUG-2445449

Apache ZookeeperImproper handling of configuration values in ZKConfig in Apache ZooKeeper 3.8.5 and 3.9.4 on all pla…

Risk 33
Severity
7
First published (updated )
REDHAT-BUG-2445451

Apache ZookeeperApache ZooKeeper: Sensitive information disclosure in client configuration handling

Risk 46
Severity
7.5
First published (updated )
CVE-2026-24308

Apache ZookeeperApache ZooKeeper: Reverse-DNS fallback enables hostname verification bypass in ZooKeeper ZKTrustManager

Risk 61
Severity
7.4
First published (updated )
CVE-2026-24281

oss-secCVE-2026-24281: Apache ZooKeeper: verse-DNS fallback enables hostname verification bypass in ZooKeeper ZKTrustManager

First published (updated )
https://seclists.org/oss-sec/2026/q1/269
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Apache ZookeeperApache ZooKeeper: Insufficient Permission Check in AdminServer Snapshot/Restore Commands

Risk 24
Severity
4.3
First published (updated )
CVE-2025-58457

Apache ZookeeperInformation disclosure in persistent watchers handling in Apache ZooKeeper due to missing ACL check.…

Risk 19
Severity
4
First published (updated )
REDHAT-BUG-2328637

maven/org.apache.zookeeper:zookeeperApache ZooKeeper: Information disclosure in persistent watcher handling

Risk 42
Severity
5.3
First published (updated )
CVE-2024-23944

CVE-2024-23944: Apache ZooKeeper: Information disclosure in persistent watcher handling

First published (updated )
https://seclists.org/oss-sec/2024/q1/229

ubuntu/zookeeperApache ZooKeeper: Authorization bypass in SASL Quorum Peer Authentication

Risk 71
Severity
9.1
First published (updated )
CVE-2023-44981
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Apache Software Foundation ZooKeeper 3.7Reached end of life

EOL
Jan 19, 2024
Support Ends
Jul 19, 2023
First published (updated )
EOL-zookeeper-3.7

Apache Software Foundation ZooKeeper 3.7Reached end of life

EOL
Jan 19, 2024
Support Ends
Jul 19, 2023
First published (updated )
latest-version-zookeeper-3.7

redhat/eap7-nettyPossible request smuggling in HTTP/2 due missing validation

Risk 42
Severity
6.5
First published (updated )
CVE-2021-21295

Apache Software Foundation ZooKeeper 3.6Reached end of life

EOL
Dec 30, 2022
Support Ends
Mar 7, 2022
First published (updated )
latest-version-zookeeper-3.6

Apache Software Foundation ZooKeeper 3.6Reached end of life

EOL
Dec 30, 2022
Support Ends
Mar 7, 2022
First published (updated )
EOL-zookeeper-3.6
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Apache ZookeeperA flaw was found in Apache ZooKeeper. A lack of permission checks while retrieving ACLs allows unsal…

Risk 46
Severity
5.9
First published (updated )
CVE-2019-0201

Apache Software Foundation ZooKeeper 3.5Reached end of life

EOL
Jun 1, 2022
Support Ends
Mar 27, 2021
First published (updated )
EOL-zookeeper-3.5

Apache Software Foundation ZooKeeper 3.5Reached end of life

EOL
Jun 1, 2022
Support Ends
Mar 27, 2021
First published (updated )
latest-version-zookeeper-3.5

Apache ZookeeperNo authentication/authorization is enforced when a server attempts to join a quorum in Apache ZooKee…

Risk 43
Severity
7.5
First published (updated )
CVE-2018-8012

Apache ZookeeperTwo four letter word commands “wchp/wchc” are CPU intensive and could cause spike of CPU utilization…

Risk 18
Severity
4
First published (updated )
REDHAT-BUG-1454808
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Apache ZookeeperTwo four letter word commands "wchp/wchc" are CPU intensive and could cause spike of CPU utilization…

Risk 44
Severity
7.5
First published (updated )
CVE-2017-5637

Apache ZookeeperBuffer Overflow

Risk 75
Severity
8.1
First published (updated )
CVE-2016-5017

Red Hat JBoss FuseGraeme Colman of Red Hat reported a sensitive data exposure flaw in Apache Zookeeper. An admin user…

Risk 5
Severity
1
First published (updated )
REDHAT-BUG-1067265

Apache Software Foundation ZooKeeper 3.4Reached end of life

EOL
Jun 1, 2020
Support Ends
Mar 27, 2020
First published (updated )
latest-version-zookeeper-3.4

Apache Software Foundation ZooKeeper 3.4Reached end of life

EOL
Jun 1, 2020
Support Ends
Mar 27, 2020
First published (updated )
EOL-zookeeper-3.4
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