Vulnerability Details CVE-2026-74038
Wazuh 4.0.0 before 4.14.6 contains a path traversal vulnerability that allows unauthenticated remote attackers to cause denial of service by enrolling an agent with a dot-sequence name such as ".." through the enrollment port. Attackers exploit insufficient validation in OS_IsValidName() and unsafe path concatenation in delete_diff() to resolve the traversal to the parent queue directory, causing its subdirectories to be removed and stopping all Wazuh services requiring manual recovery.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 36.2%
CVSS Severity
CVSS v3 Score 7.1
Products affected by CVE-2026-74038
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cpe:2.3:a:wazuh:wazuh:4.0.0
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cpe:2.3:a:wazuh:wazuh:4.0.1
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cpe:2.3:a:wazuh:wazuh:4.0.2
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cpe:2.3:a:wazuh:wazuh:4.0.3
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cpe:2.3:a:wazuh:wazuh:4.0.4
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cpe:2.3:a:wazuh:wazuh:4.1.0
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cpe:2.3:a:wazuh:wazuh:4.1.1
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cpe:2.3:a:wazuh:wazuh:4.1.2
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cpe:2.3:a:wazuh:wazuh:4.1.3
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cpe:2.3:a:wazuh:wazuh:4.1.4
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cpe:2.3:a:wazuh:wazuh:4.1.5
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cpe:2.3:a:wazuh:wazuh:4.10.0
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cpe:2.3:a:wazuh:wazuh:4.10.1
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cpe:2.3:a:wazuh:wazuh:4.10.2
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cpe:2.3:a:wazuh:wazuh:4.10.3
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cpe:2.3:a:wazuh:wazuh:4.10.4
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cpe:2.3:a:wazuh:wazuh:4.10.5
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cpe:2.3:a:wazuh:wazuh:4.11.0
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cpe:2.3:a:wazuh:wazuh:4.11.1
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cpe:2.3:a:wazuh:wazuh:4.11.2
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cpe:2.3:a:wazuh:wazuh:4.12.0
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cpe:2.3:a:wazuh:wazuh:4.13.0
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cpe:2.3:a:wazuh:wazuh:4.13.1
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cpe:2.3:a:wazuh:wazuh:4.14.0
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cpe:2.3:a:wazuh:wazuh:4.14.1
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cpe:2.3:a:wazuh:wazuh:4.14.2
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cpe:2.3:a:wazuh:wazuh:4.14.3
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cpe:2.3:a:wazuh:wazuh:4.14.4
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cpe:2.3:a:wazuh:wazuh:4.14.5
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cpe:2.3:a:wazuh:wazuh:4.2.0
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cpe:2.3:a:wazuh:wazuh:4.2.1
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cpe:2.3:a:wazuh:wazuh:4.2.2
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cpe:2.3:a:wazuh:wazuh:4.2.3
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cpe:2.3:a:wazuh:wazuh:4.2.4
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cpe:2.3:a:wazuh:wazuh:4.2.5
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cpe:2.3:a:wazuh:wazuh:4.2.6
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cpe:2.3:a:wazuh:wazuh:4.2.7
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cpe:2.3:a:wazuh:wazuh:4.3.0
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cpe:2.3:a:wazuh:wazuh:4.3.1
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cpe:2.3:a:wazuh:wazuh:4.3.10
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cpe:2.3:a:wazuh:wazuh:4.3.11
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cpe:2.3:a:wazuh:wazuh:4.3.2
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cpe:2.3:a:wazuh:wazuh:4.3.3
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cpe:2.3:a:wazuh:wazuh:4.3.4
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cpe:2.3:a:wazuh:wazuh:4.3.5
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cpe:2.3:a:wazuh:wazuh:4.3.6
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cpe:2.3:a:wazuh:wazuh:4.3.7
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cpe:2.3:a:wazuh:wazuh:4.3.8
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cpe:2.3:a:wazuh:wazuh:4.3.9
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cpe:2.3:a:wazuh:wazuh:4.4.0
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cpe:2.3:a:wazuh:wazuh:4.4.1
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cpe:2.3:a:wazuh:wazuh:4.4.2
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cpe:2.3:a:wazuh:wazuh:4.4.3
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cpe:2.3:a:wazuh:wazuh:4.4.4
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cpe:2.3:a:wazuh:wazuh:4.4.5
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cpe:2.3:a:wazuh:wazuh:4.5.0
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cpe:2.3:a:wazuh:wazuh:4.5.1
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cpe:2.3:a:wazuh:wazuh:4.5.2
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cpe:2.3:a:wazuh:wazuh:4.5.3
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cpe:2.3:a:wazuh:wazuh:4.5.4
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cpe:2.3:a:wazuh:wazuh:4.6.0
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cpe:2.3:a:wazuh:wazuh:4.7.0
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cpe:2.3:a:wazuh:wazuh:4.7.1
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cpe:2.3:a:wazuh:wazuh:4.7.2
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cpe:2.3:a:wazuh:wazuh:4.7.3
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cpe:2.3:a:wazuh:wazuh:4.7.4
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cpe:2.3:a:wazuh:wazuh:4.7.5
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cpe:2.3:a:wazuh:wazuh:4.8.0
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cpe:2.3:a:wazuh:wazuh:4.8.1
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cpe:2.3:a:wazuh:wazuh:4.8.2
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cpe:2.3:a:wazuh:wazuh:4.9.0
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cpe:2.3:a:wazuh:wazuh:4.9.1
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cpe:2.3:a:wazuh:wazuh:4.9.2