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    CVE-2026-74046

    Wazuh 4.4.0 before 4.14.7 contains a denial of service vulnerability in the fdecompress_files() function within cluster.py that allows authenticated cluster peers to exhaust memory by supplying a malicious synchronization archive without decompressed size limits. Attackers holding a valid cluster Fernet key can upload a small, highly compressed zip bomb archive that forces wazuh-clusterd on the master node to decompress the full payload into memory, causing memory exhaustion and service disruption.

    Published:Aug 18, 2026
    Last Modified:Sep 16, 2026
    EPS:Aug 18, 2026
    EPSS Score:0.00384
    CVSS Score:4.9

    Affected Products

    Vendor
    Wazuh
    Product
    Wazuh
    Vendor
    Wazuh
    Product
    Wazuh-manager

    Exploits

    https://github.com/wazuh/wazuh/security/advisories/GHSA-mr7j-w2m4-vw5jhttps://github.com/wazuh/wazuh/security/advisories/GHSA-mr7j-w2m4-vw5j

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-93346 (CVSS 6.9) — Wazuh from 4.0.0 before 4.14.8 contains a race condition in API login throttling that allows unauthenticated a…
    CVE-2026-74047 (CVSS 7.1) — Wazuh from 4.0.0 before 4.14.8 contains an information disclosure vulnerability that allows low-privileged use…
    CVE-2026-74045 (CVSS 7.1) — Wazuh from 3.12.0 before 4.14.8 contains a heap buffer overflow in fim_generate_alert() where full_log is size…
    CVE-2026-74043 (CVSS 8.5) — Wazuh from 4.1.1 before 4.14.8 contains a path traversal vulnerability in upload_list_file, upload_rule_file, …
    CVE-2026-74041 (CVSS 8.6) — Wazuh 4.14.3 before 4.14.8 and 4.10.4 contains a case-sensitivity mismatch between the ossec.conf validator an…
    CVE-2026-74040 (CVSS 9.4) — Wazuh versions from 3.9.0 before 4.14.8 contain an arbitrary file overwrite vulnerability in MasterHandler.pro…
    CVE-2026-74037 (CVSS 8.6) — Wazuh 4.0.0 before 4.14.8 fails to invalidate issued tokens for run_as users with zero static roles, because c…
    CVE-2026-74036 (CVSS 8.6) — Wazuh from 4.3.0 before 4.14.8 contains a remote code execution vulnerability where SCA policy trust is determ…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High