CVE-2026-32983 SSL/TLS Renegotiation DoS in Wazuh Manager authd service

What is CVE-2026-32983?

CVE-2026-32983 is a medium-severity denial of service vulnerability in Wazuh Wazuh, published on 27 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Wazuh Manager authd service in wazuh-manager packages through version 4.7.3 contains an improper restriction of client-initiated SSL/TLS renegotiation vulnerability that allows remote attackers to cause a denial of service by sending excessive renegotiation requests. Attackers can exploit the lack of renegotiation limits to consume CPU resources and render the authd service unavailable.

Weakness: CWE-276

Which versions are affected by CVE-2026-32983?

It affects 1 product.

Products include Wazuh Wazuh.

How do I fix CVE-2026-32983?

No fix has been published for CVE-2026-32983 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-32983 being exploited?

There is no known exploitation of CVE-2026-32983 in the wild and no public exploit code.

Other vulnerabilities in Wazuh Wazuh

• CVE-2025-24016 Wazuh Server Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2024-32038 Wazuh Analysis Engine Event Decoder Heap-based Buffer Overflow Remote Code Execution Vulnerability Critical 9.8
• CVE-2021-44079 Command injection in n/a Critical 9.8
• CVE-2024-1243 Remote code execution and local privilege escalation in Wazuh Windows agent via NetNTLMv2 hash theft Critical 9.5
• CVE-2026-61800 Wazuh cluster worker file sync allows arbitrary file write under /var/ossec (incomplete fix for CVE-2026-30893) Critical 9.1

All Wazuh Wazuh vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-vjrj-837q-jqv3.