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Apache ZooKeeper: Apache ZooKeeper: Impersonation of servers or clients via reverse DNS spoofing

🗓️ 06 May 2026 17:59:07Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 10 Views

Apache ZooKeeper flaw enables impersonation via reverse name spoofing when hostname checks fallback to pointer records after IP subject alternative name validation fails.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: IBM InfoSphere Information Server is affected by multiple vulnerabilities in Apache ZooKeeper
24 Jun 202621:38
–ibm
IBM Security Bulletins		Security Bulletin: Security Vulnerability in Apache Zookeeper affects IBM Sterling B2B Integrator and IBM Sterling File Gateway (CVE-2026-24281 CVE-2026-24308)
21 Jul 202618:15
–ibm
IBM Security Bulletins		Security Bulletin: The following vulnerabilities that can affect IBM Storage Scale Management GUI, Cluster Export Services (CES) S3 or HDFS layer are now fixed in 5.2.3.8 and 6.0.1.0 or higher
5 Jun 202619:44
–ibm
IBM Security Bulletins		Security Bulletin: IBM Operational Decision Manager for April 2026 - Multiple CVEs addressed
29 May 202610:57
–ibm
IBM Security Bulletins		Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in zookeeper-3.8.4.jar
28 Apr 202619:11
–ibm
ATTACKERKB		CVE-2026-24281
7 Mar 202608:50
–attackerkb
Tenable Nessus		Apache ZooKeeper 3.8.x < 3.8.6 / 3.9.x < 3.9.5 Multiple Vulnerabilities
12 Mar 202600:00
–nessus
Tenable Nessus		Linux Distros Unpatched Vulnerability : CVE-2026-24281
10 Mar 202600:00
–nessus
Chainguard		CVE-2026-24281 vulnerabilities
12 Mar 202607:18
–cgr
Circl		CVE-2026-24281
7 Mar 202608:16
–circl
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15 Jul 2026 15:21Current
7.1High risk
Vulners AI Score7.1
CVSS 3.17.4
EPSS0.00633
SSVC
CWE-295
Apache ZooKeeperreverse name spoofinghostname checkspointer recordsserver impersonationclient impersonationcertificate validation
10