CVE-2026-24281
7.4 · HIGHOverview
CVE-2026-24281 is a high-severity vulnerability affecting apache zookeeper. It was published on March 7, 2026 and has a CVSS 3.1 base score of 7.4 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
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 present a certificate which is trusted by ZKTrustManager which makes the attack vector harder to exploit. Users are recommended to upgrade to version 3.8.6 or 3.9.5, which fixes this issue by introducing a new configuration option to disable reverse DNS lookup in client and quorum protocols.
Remediation
Check the references section for vendor advisories and patches from apache. Update zookeeper to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| apache | zookeeper | >= 3.8.0, < 3.8.6 | Affected |
References
Frequently Asked Questions
What is CVE-2026-24281?
CVE-2026-24281 is a high-severity vulnerability affecting apache zookeeper. It was published on March 7, 2026 and has a CVSS 3.1 base score of 7.4 (HIGH).
How severe is CVE-2026-24281?
This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-24281?
Check the references section for vendor advisories and patches from apache. Update zookeeper to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-24281?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-24281 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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