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OpenAdvisories
Medium · 5.9 CVE-2026-112339 EUVD-2026-118282

Wazuh 3.9.0 before 4.14.9 Missing TLS Hostname Verification in fluent-forward Module

Published Nov 6, 2026 · Updated Nov 11, 2026 · Assigned by VulnCheck

Description

Wazuh from 3.9.0 before 4.14.9 contains a missing TLS hostname verification vulnerability in the fluent-forward module's wm_fluent_ssl_ctx() that allows network attackers to impersonate the Fluentd collector by presenting any certificate chaining to the configured ca_file. Attackers who redirect the connection via DNS, ARP, or on-path positions can receive forwarded security telemetry and the shared_key_hexdigest for offline cracking.

Affected products

VendorProductAffectedFixed
wazuh wazuh 3.9.0 – < 4.14.9 4.14.9

Advisories 1

References