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CVE-2026-84501

Medium priority
Needs evaluation

(An unauthenticated attacker can inject arbitrary fake log lines into A ...)

1 affected package

zookeeper

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
zookeeper Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-84439

Medium priority
Needs evaluation

(When audit logging is enabled (zookeeper.audit.enable=true), an unauth ...)

1 affected package

zookeeper

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
zookeeper Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-79993

Medium priority
Needs evaluation

(The `deleteContainer` opcode (0x14/20) is processed without verifying ...)

1 affected package

zookeeper

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
zookeeper Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-59969

Medium priority
Needs evaluation

(Apache ZooKeeper quorum TLS fails to enforce peer hostname verificatio ...)

1 affected package

zookeeper

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
zookeeper Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-59739

Medium priority
Needs evaluation

(Information disclosure via SetWatches reconnect replay in Apache ZooKe ...)

1 affected package

zookeeper

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
zookeeper Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-24308

Medium priority
Needs evaluation

Improper handling of configuration values in ZKConfig in Apache ZooKeeper 3.8.5 and 3.9.4 on all platforms allows an attacker to expose sensitive information stored in client configuration in the client's logfile. Configuration...

1 affected package

zookeeper

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
zookeeper Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-24281

Medium priority
Needs evaluation

Hostname verification in Apache ZooKeeper ZKTrustManager falls back to reverse DNS (PTR) when IP SAN validation fails, allowing attackers who control or spoof PTR records to impersonate ZooKeeper servers or clients with a valid...

1 affected package

zookeeper

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
zookeeper Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2025-58457

Medium priority
Needs evaluation

Improper permission check in ZooKeeper AdminServer lets authorized clients to run snapshot and restore command with insufficient permissions. This issue affects Apache ZooKeeper: from 3.9.0 before 3.9.4. Users are recommended to...

1 affected package

zookeeper

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
zookeeper Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2024-51504

Medium priority
Vulnerable

When using IPAuthenticationProvider in ZooKeeper Admin Server there is a possibility of Authentication Bypass by Spoofing -- this only impacts IP based authentication implemented in ZooKeeper Admin Server. Default configuration of...

1 affected package

zookeeper

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
zookeeper Not affected Vulnerable Not affected Not affected Not affected
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CVE-2024-23944

Medium priority
Vulnerable

Information disclosure in persistent watchers handling in Apache ZooKeeper due to missing ACL check. It allows an attacker to monitor child znodes by attaching a persistent watcher (addWatch command) to a parent which the attacker...

1 affected package

zookeeper

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
zookeeper Not affected Vulnerable Not affected Not affected Not affected
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