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CVE-2026-33754

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
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0c3b82068b6f41067bde2854d2a59c89d8fac57da4f4ba170985072168e01d84
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"wazuh","vendor":"wazuh","versions":[{"status":"affected","version":">= 3.9.0, < 4.14.5"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:440dbbfcc0ac931a78112826c5c9aa5f75d48e9170163d0ab2cfeb41cc9a2e71 · sha256:30135ec2ef2dc8e9… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:440dbbfcc0ac931a78112826c5c9aa5f75d48e9170163d0ab2cfeb41cc9a2e71 · sha256:30135ec2ef2dc8e9… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-400","description":"CWE-400: Uncontrolled Resource Consumption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:440dbbfcc0ac931a78112826c5c9aa5f75d48e9170163d0ab2cfeb41cc9a2e71 · sha256:30135ec2ef2dc8e9… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://github.com/wazuh/wazuh/security/advisories/GHSA-476v-28pp-5wg9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:440dbbfcc0ac931a78112826c5c9aa5f75d48e9170163d0ab2cfeb41cc9a2e71 · sha256:30135ec2ef2dc8e9… · /containers/adp/0/references/0
{"name":"https://github.com/wazuh/wazuh/security/advisories/GHSA-476v-28pp-5wg9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/wazuh/wazuh/security/advisories/GHSA-476v-28pp-5wg9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:440dbbfcc0ac931a78112826c5c9aa5f75d48e9170163d0ab2cfeb41cc9a2e71 · sha256:30135ec2ef2dc8e9… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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