[NEW] [high] Wazuh: Multiple vulnerabilities

highCVE-2026-28220 CVE-2026-33434 CVE-2026-33754 CVE-2026-34150 CVE-2026-39359 CVE-2026-40106

An attacker can exploit multiple vulnerabilities in Wazuh to escalate their privileges, carry out a Denial of Service attack, disclose information, and bypass security precautions.

CSIRTS triage

vendor: Wazuh product: Wazuh Privilege escalation Denial of service Information disclosure Authentication bypass

What: Multiple vulnerabilities can be exploited to escalate privileges, carry out a Denial of Service attack, disclose information, and bypass security precautions.
Who is affected: Deployments of Wazuh are affected.
Urgency: Remediation is high urgency due to the potential for significant security breaches.
Action: Apply the latest patches for Wazuh immediately.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Wazuh

Get an email when a new Wazuh advisory drops — max one per day, one-click unsubscribe.

Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-07-21
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2377

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-282200.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all scored CVEs.
Low exploitation riskCVE-2026-334340.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 18% of all scored CVEs.
Low exploitation riskCVE-2026-337540.48% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all scored CVEs.
Low exploitation riskCVE-2026-341500.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all scored CVEs.
Low exploitation riskCVE-2026-393590.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all scored CVEs.
Low exploitation riskCVE-2026-401060.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.
Low exploitation riskCVE-2026-442510.36% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 29% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-28220	coverage & exploitation status	NVD · CVE.org
CVE-2026-33434	coverage & exploitation status	NVD · CVE.org
CVE-2026-33754	coverage & exploitation status	NVD · CVE.org
CVE-2026-34150	coverage & exploitation status	NVD · CVE.org
CVE-2026-39359	coverage & exploitation status	NVD · CVE.org
CVE-2026-40106	coverage & exploitation status	NVD · CVE.org
CVE-2026-44251	coverage & exploitation status	NVD · CVE.org
CVE-2026-44252	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Wazuh

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

criticalCVE-2026-67308: Wazuh workflows before 44bf114 contain a shell injection vulnerability in GitHub Actions that …nvd · 2026-08-01
mediumCVE-2026-67307: Wazuh 5.0.0-beta1 (fixed in 5.0.0-beta3) does not validate or override the cluster_name and cl…nvd · 2026-08-01
highCVE-2026-28220: Wazuh is a free and open source platform used for threat prevention, detection, and response. …nvd · 2026-07-20
mediumCVE-2026-44251: Wazuh is a free and open source platform used for threat prevention, detection, and response. …nvd · 2026-07-17
mediumCVE-2026-40106: Wazuh is a free and open source platform used for threat prevention, detection, and response. …nvd · 2026-07-17
highCVE-2026-39359: Wazuh is a free and open source platform used for threat prevention, detection, and response. …nvd · 2026-07-17