{"apiVersion":"1.0","identifier":"CVE-2026-54084","description":"Wazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads. In versions 4.0.0 through 4.14.6, a malicious or man-in-the-middle enrollment manager can crash a Wazuh agent during enrollment by returning a malformed key response with fewer than four fields, causing a NULL pointer dereference. The w_enrollment_process_agent_key() routine splits the manager-provided key into four space-separated fields but does not verify that all fields are present before passing them to validators. Because OS_StrBreak() leaves missing trailing entries as NULL and OS_IsValidName() calls strlen() on its argument without a NULL check, a response such as OSSEC K:-1- reaches OS_IsValidName(NULL) and terminates the agent process. Since Wazuh permits enrollment against an unverified manager when no CA certificate is configured, an attacker operating a rogue manager or intercepting the enrollment flow can deterministically crash agents, resulting in denial of service. This issue is fixed in version 4.14.7.","publishedAt":"2026-08-28T00:18:07","lastModifiedAt":"2026-08-28T00:18:07","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-54084","cvssScore":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H","epssProbability":0.00114,"riskScore":0.54,"affectedProduct":"Wazuh","affectedVersions":">=4.0.0,<4.14.7","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-54084","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-54084","en":"https://www.redsauce.net/en/cves/CVE-2026-54084","fr":"https://www.redsauce.net/fr/cves/CVE-2026-54084","pt":"https://www.redsauce.net/pt/cves/CVE-2026-54084","de":"https://www.redsauce.net/de/cves/CVE-2026-54084","sk":"https://www.redsauce.net/sk/cves/CVE-2026-54084","el":"https://www.redsauce.net/el/cves/CVE-2026-54084"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-54084"}}