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TI-2024-15925 Aliases CVE-2024-23944GHSA-r978-9m6m-6gm6

Apache ZooKeeper: Information disclosure in persistent watcher handling

Priority LOW 24CWE-862Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass, Information disclosure
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Partial Red Hat: 1 fixed, 2 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-862 and CWE-200.

Summary

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 has already access to. ZooKeeper server doesn't do ACL check when the persistent watcher is triggered and as a consequence, the full path of znodes that a watch event gets triggered upon is exposed to the owner of the watcher. It's important to note that only the path is exposed by this vulnerability, not the data of znode, but since znode path can contain sensitive information like user name or login ID, this issue is potentially critical. Users are recommended to upgrade to version 3.9.2, 3.8.4 which fixes the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00246 16th percentileScored 2026-11-07
Fix Partial org.apache.zookeeper:zookeeper (Maven): 3.8.4, 3.9.2Red Hat: 1 advisoryRed Hat: 1 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache ZooKeeper3.9.0 – 3.9.1; 3.8.0 – 3.8.3; 3.6.0 – 3.7.2—No fix listedCNA
—org.apache.zookeeper:zookeeper (Maven)3.8.0 to before 3.8.43.8.4Patch availableGHSA-r978-9m6m-6gm6
—org.apache.zookeeper:zookeeper (Maven)3.9.0 to before 3.9.23.9.2Patch availableGHSA-r978-9m6m-6gm6
—org.apache.zookeeper:zookeeper (Maven)3.6.0 – 3.7.2—No fix listedGHSA-r978-9m6m-6gm6
  • Apache ZooKeeper VendorApache Affected 3.9.0 – 3.9.1; 3.8.0 – 3.8.3; 3.6.0 – 3.7.2 Fixed in — No fix listed CNA
  • org.apache.zookeeper:zookeeper (Maven) Vendor— Affected 3.8.0 to before 3.8.4 Fixed in 3.8.4 Patch available GHSA-r978-9m6m-6gm6
  • org.apache.zookeeper:zookeeper (Maven) Vendor— Affected 3.9.0 to before 3.9.2 Fixed in 3.9.2 Patch available GHSA-r978-9m6m-6gm6
  • org.apache.zookeeper:zookeeper (Maven) Vendor— Affected 3.6.0 – 3.7.2 Fixed in — No fix listed GHSA-r978-9m6m-6gm6

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:zookeeper:*:*:*:*:*:*:*:*3.6.0 – 3.7.2; 3.8.0 to before 3.8.4; 3.9.0 to before 3.9.2VulnerableApache
  • cpe:2.3:a:apache:zookeeper:*:*:*:*:*:*:*:* Versions 3.6.0 – 3.7.2; 3.8.0 to before 3.8.4; 3.9.0 to before 3.9.2 Vulnerable ·Apache

Remediation

  • Fix · GHSA-r978-9m6m-6gm6 org.apache.zookeeper:zookeeper (Maven) Fixed in 3.8.4 Advisory →
  • Fix · GHSA-r978-9m6m-6gm6 org.apache.zookeeper:zookeeper (Maven) Fixed in 3.9.2 Advisory →

Red Hat 1 advisory

  • RHSA-2024:6536 Released 2024-09-10 · Red Hat rating Moderate
    Red Hat AMQ Streams 2.5.2 release and security update
    • Red Hat AMQ Streams 2.5.2

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Fuse 7AffectedNo fix planned: Out of support scope
streams for Apache KafkaAffectedNo fix yet
Red Hat AMQ Streams 2.5.2Fixed RHSA-2024:6536
Not affected: 2 products
  • Red Hat JBoss Enterprise Application Platform 8
  • Red Hat JBoss Enterprise Application Platform Expansion Pack

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-23944
  2. 2026-10-03 Alias added: GHSA-r978-9m6m-6gm6

References

Advisory 2

Other 5

  • TI-2017-03638 Missing authentication in Apache ZooKeeper CVSS 3.0HIGH 7.5
  • TI-2023-24043 Apache ZooKeeper: Authorization bypass in SASL Quorum Peer Authentication CVSS 3.1CRITICAL 9.1
  • TI-2021-04395 Possible request smuggling in HTTP/2 due missing validation CVSS 3.1MEDIUM 5.9
  • TI-2024-34425 Apache ZooKeeper: Authentication bypass with IP-based authentication in Admin Server CVSS 3.1CRITICAL 9.1
  • TI-2016-04336 Buffer overflow in the C cli shell in Apache Zookeeper before 3.4.9 and 3.5.x before… CVSS 3.0HIGH 8.1
  • TI-2018-05789 Missing authorization in Apache ZooKeeper CVSS 3.1HIGH 7.5
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences