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VulnerabilityPublished

CVE-2026-112339: wazuh · Improper Validation of Certificate with Host Mismatch

Affects wazuhSource CVE Database V5

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Not known to be exploited · CVSS 8.2 High : upgrade to 4.14.9 soon.

Data as of 6 Nov 2026, 15:32 UTC

CVSS 4.0 base score
8.2High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.08.2
CNA (VulnCheck)CVSS 3.15.9
Patch
Available – fixed in 4.14.9
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade wazuh to 4.14.9.

Affected software

ProductAffectedFixed in
wazuhwazuhAffected
  • >=3.9.0 <4.14.9
Fixed in
  • 4.14.9
GitHubwazuhpkg:github/wazuhOther threatsAffected
  • >=3.9.0 <4.14.9
Fixed in
  • 4.14.9

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade Wazuh to version 4.14.9 or later, where this vulnerability is fixed. No other mitigation or temporary workaround is indicated.

Description

Wazuh versions from 3.9.0 up to but not including 4.14.9 have a vulnerability in the fluent-forward module where TLS hostname verification is missing. This flaw allows network attackers who can redirect connections via DNS, ARP, or on-path attacks to impersonate the Fluentd collector by presenting any certificate chaining to the configured CA file. Exploiting this vulnerability enables attackers to intercept forwarded security telemetry and obtain the shared key hash for offline cracking.

References

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