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

Quick assessment

Affected
Wazuh wazuh-manager
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wazuh是Wazuh开源的一个应用软件。用于收集，汇总，索引和分析安全数据，帮助组织检测入侵，威胁和行为异常。 Wazuh 4.7.3及之前版本存在安全漏洞，该漏洞源于对客户端发起的SSL/TLS重新协商限制不当，可能导致远程攻击者发送过多的重新协商请求，从而消耗CPU资源并导致authd服务不可用。

CVSS 5.8 · Medium EPSS 0.54% · P44

Affected Version Matrix 2

VendorProduct Version RangeStatus
Wazuh wazuh-manager ≤ 4.7.3 affected
4.8.0 unaffected
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I. Basic Information for CVE-2026-32983

Vulnerability Information
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Vulnerability Title
SSL/TLS Renegotiation DoS in Wazuh Manager authd service
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
缺省权限不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Wazuh 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wazuh是Wazuh开源的一个应用软件。用于收集，汇总，索引和分析安全数据，帮助组织检测入侵，威胁和行为异常。 Wazuh 4.7.3及之前版本存在安全漏洞，该漏洞源于对客户端发起的SSL/TLS重新协商限制不当，可能导致远程攻击者发送过多的重新协商请求，从而消耗CPU资源并导致authd服务不可用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Wazuh wazuh-manager 0 ~ 4.7.3 -

II. Public POCs for CVE-2026-32983

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III. Intelligence Information for CVE-2026-32983

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Vendor Advisories for CVE-2026-32983 (2)

Same Patch Batch · Wazuh · 2026-03-27 · 7 CVEs total

CVE-2025-15616 6.7 MEDIUM Wazuh Agent and Manager OS Command Injection and Untrusted Search Path
CVE-2025-15617 6.5 MEDIUM Wazuh GitHub Actions Workflow Exposure of Sensitive Credentials
CVE-2025-15615 5.8 MEDIUM Wazuh Manager authd service Improper SSL/TLS Renegotiation Handling leading to Denial of S
CVE-2025-15612 4.8 MEDIUM Wazuh Provisioning Scripts / Build Infrastructure Improper Certificate Validation leading
CVE-2026-32984 3.5 LOW Heap buffer overflow in wazuh-authd
CVE-2023-7340 3.5 LOW Wazuh authd service (os_auth) Heap-based Buffer Overflow

IV. Related Vulnerabilities

Same product: wazuh-manager
Same vendor: Wazuh
Same weakness: CWE-276

V. Comments for CVE-2026-32983

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