CVE-2026-33754
Last modified
CVE-2026-33754 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions 3.9.0 and above, prior to 4.14.5, a remote attacker can trigger memory exhaustion in the cluster protocol parser by sending a crafted message header with an arbitrarily large payload length. EPSS estimates a 0.22% chance of exploitation in the next 30 days.
Description
Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions 3.9.0 and above, prior to 4.14.5, a remote attacker can trigger memory exhaustion in the cluster protocol parser by sending a crafted message header with an arbitrarily large payload length. The length is trusted before authentication/decryption and used directly to allocate memory, allowing unauthenticated denial of service of the cluster service. This issue has been fixed in version 4.14.5.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Wazuh | Wazuh | >= 3.9.0, < 4.14.5 |
References
- https://github.com/wazuh/wazuh/security/advisories/GHSA-476v-28pp-5wg9Exploit, Vendor Advisory
- https://github.com/wazuh/wazuh/security/advisories/GHSA-476v-28pp-5wg9Exploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-33754?
How severe is CVE-2026-33754?
How do I fix CVE-2026-33754?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-33749n8n is an open source workflow automation platform. Prior to…9
- CVE-2026-3375The LiteSpeed Cache plugin for WordPress is vulnerable to St…7.2
- CVE-2026-33750The brace-expansion library generates arbitrary strings cont…7.5
- CVE-2026-33751n8n is an open source workflow automation platform. Prior to…4.8
- CVE-2026-33752curl_cffi is the a Python binding for curl. Prior to 0.15.0,…8.6
- CVE-2026-33753rfc3161-client is a Python library implementing the Time-Sta…7.5
- CVE-2026-33755Group-Office is an enterprise customer relationship manageme…8.8
- CVE-2026-33756Saleor is an e-commerce platform. From 2.0.0 to before 3.23.…7.5
- CVE-2026-33757OpenBao is an open source identity-based secrets management …8.3
- CVE-2026-33758OpenBao is an open source identity-based secrets management …6.1
- CVE-2026-33759WWBN AVideo is an open source video platform. In versions up…5.3
- CVE-2026-3376A security vulnerability has been detected in Tenda F453 1.0…8.8
Are you affected by CVE-2026-33754?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST