CLEANSTART-2026-KT54860 Security fixes for ghsa-72hv-8253-57qq applied in versions: 3.6.4-r4

Security vulnerability affects the apache-zookeeper package. This issue is resolved in later releases. See references for vulnerability details...

SUSE CVE-2026-0528

Improper Validation of Array Index CWE-129 exists in Metricbeat can allow an attacker to cause a Denial of Service through Input Data Manipulation CAPEC-153 via specially crafted, malformed payloads sent to the Graphite server metricset or Zookeeper server metricset. Additionally, Improper Input...

Information Disclosure

Apache ZooKeeper is vulnerable to Information Disclosure. The vulnerability is due to improper handling of configuration values in ZKConfig, where sensitive client configuration data may be logged at INFO level in the client logfile, potentially exposing confidential information...

Apache ZooKeeper 3.8.x < 3.8.6 / 3.9.x < 3.9.5 Multiple Vulnerabilities

The version of Apache ZooKeeper listening on the remote host is 3.8.x prior to 3.8.6 or 3.9.x prior to 3.9.5. It is, therefore, affected by multiple vulnerabilities: - Improper handling of configuration values in ZKConfig allows an attacker to expose sensitive information stored in client...

Apache ZooKeeper 3.9.x < 3.9.4 Improper Permission Check

The version of Apache ZooKeeper listening on the remote host is 3.9.x prior to 3.9.4. It is, therefore, affected by an improper permission check vulnerability: - Improper permission check in ZooKeeper AdminServer lets authorized clients to run snapshot and restore commands with insufficient...

CVE-2026-24308 vulnerabilities

Vulnerabilities for packages: apache-nifi, kafka, tez, zookeeper, spark, trino, solr, druid, kserve-modelmesh, wso2is, apache-pulsar-fips, spark-kubernetes-operator, pinot, akhq, apache-pulsar, strimzi-kafka-operator, apache-activemq-artemis, hadoop-fips, zookeeper-fips, thingsboard, spark-fips,...

GHSA-CRHR-QQJ8-RPXC vulnerabilities

Vulnerabilities for packages: apache-nifi, kafka, tez, zookeeper, spark, trino, solr, druid, kserve-modelmesh, wso2is, apache-pulsar-fips, spark-kubernetes-operator, pinot, akhq, apache-pulsar, strimzi-kafka-operator, apache-activemq-artemis, hadoop-fips, zookeeper-fips, thingsboard, spark-fips,...

BIT-ZOOKEEPER-2026-24308 Apache ZooKeeper: Sensitive information disclosure in client configuration handling

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 values are exposed at INFO level logging rendering potential producti...

BIT-ZOOKEEPER-2026-24281 Apache ZooKeeper: Reverse-DNS fallback enables hostname verification bypass in ZooKeeper ZKTrustManager

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 certificate for the PTR name. It's important to note that attacker must...

PT-2026-24613

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 certificate for the PTR name. It's important to note that attacker must...

Linux Distros Unpatched Vulnerability : CVE-2026-24308

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

Linux Distros Unpatched Vulnerability : CVE-2026-24281

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Hostname verification in Apache ZooKeeper ZKTrustManager falls back to reverse DNS PTR when IP SAN validation fails, allowing attackers who control or spoof PTR...

PT-2026-24614

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 values are exposed at INFO level logging rendering potential producti...

CVE-2026-24281

A flaw was found in Apache ZooKeeper. The ZKTrustManager component's hostname verification process can fall back to reverse DNS PTR lookup when IP Subject Alternative Name SAN validation fails. This vulnerability allows an attacker who can control or spoof PTR records to impersonate ZooKeeper...

CVE-2026-24308

A flaw was found in Apache ZooKeeper. Improper handling of configuration values in ZKConfig allows an attacker to expose sensitive information. This occurs when sensitive client configuration values are logged at an INFO level in the client's logfile. This vulnerability can lead to information...

Apache ZooKeeper has improper handling of configuration values

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 values are exposed at INFO level logging rendering potential producti...

EUVD-2026-10139

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 certificate for the PTR name. It's important to note that attacker must...

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

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 certificate for the PTR name. It's important to note that attacker must...

Improper Validation of Certificate with Host Mismatch

Overview org.apache.zookeeper:zookeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services. Affected versions of this package are vulnerable to Improper Validation of Certificate with Host Mismatch in the...

Insertion of Sensitive Information into Log File

Overview org.apache.zookeeper:zookeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services. Affected versions of this package are vulnerable to Insertion of Sensitive Information into Log File via logging...