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Apache Zookeeper

19 CVEs tracked. None of them is in CISA KEV.

This hub aggregates every CVE we track for Apache Zookeeper, a product in the databases space. Use it to gauge the current risk picture and drill into individual advisories.

Apache Zookeeper CVEs per month

Dec 2024 to Nov 2026. Point at a month, or focus the strip and use the arrow keys.
Apache Zookeeper CVEs per month
MonthCVEs
2024-120
2025-010
2025-020
2025-030
2025-040
2025-050
2025-060
2025-070
2025-080
2025-091
2025-100
2025-110
2025-120
2026-010
2026-020
2026-032
2026-040
2026-050
2026-060
2026-070
2026-080
2026-095
2026-100
2026-115

Severity

How the 19 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.

  • Critical214%
  • High750%
  • Medium536%

Latest CVEs

The 15 most recently published vulnerabilities affecting Apache Zookeeper.

  1. CVE-2026-100302Apache ZooKeeper: Denial of service through unbounded memory allocation in multiRead request handling—
  2. CVE-2026-115448Apache ZooKeeper: Unbounded recursion in snapshot serialization allows a client to render the server unrecoverable—
  3. CVE-2026-100300Apache ZooKeeper: Unauthenticated persistent denial of service via unvalidated quota-node data and paths crashing the transaction-apply thread—
  4. CVE-2026-100252Apache ZooKeeper: SASL authorization bypass on the client port through a client-supplied authorization ID—
  5. CVE-2026-100235Apache ZooKeeper: ACL enforcement bypass allows unauthorized operations to commit after an ACL revocation—
  6. CVE-2026-84501Apache ZooKeeper: Operational log forgery via newline injection in EnsembleAuthenticationProvider5.3
  7. CVE-2026-84439Apache ZooKeeper: Audit log injection via unsanitized output from multiple sources5.3
  8. CVE-2026-79993Apache ZooKeeper: Missing ACL check on deleteContainer opcode allows unauthorized deletion of any empty persistent/container znode7.5
  9. CVE-2026-59969Apache ZooKeeper: Improper validation of certificate with host mismatch in FIPS mode7.5
  10. CVE-2026-59739Apache ZooKeeper: Information disclosure via SetWatches reconnect replay7.5
  11. CVE-2026-24308Apache ZooKeeper: Sensitive information disclosure in client configuration handling7.5
  12. CVE-2026-24281Apache ZooKeeper: Reverse-DNS fallback enables hostname verification bypass in ZooKeeper ZKTrustManager7.4
  13. CVE-2025-58457Apache ZooKeeper: Insufficient Permission Check in AdminServer Snapshot/Restore Commands4.3
  14. CVE-2024-51504Apache ZooKeeper: Authentication bypass with IP-based authentication in Admin Server9.1
  15. CVE-2024-23944Apache ZooKeeper: Information disclosure in persistent watcher handling5.3

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