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CVE-2026-48162— Wazuh: cluster peer can read arbitrary master files and forge offline REST API administrator tokens via DAPI tmp_file path injection in Wazuh manager

Quick assessment

Affected
wazuh wazuh
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wazuh是美国Wazuh公司开源的一款安全检测与威胁分析平台。 Wazuh 4.0.0版本至4.14.6之前版本和5.0.0-beta1版本至5.0.0-beta3之前版本存在输入验证错误漏洞，该漏洞源于DistributedAPI.send_tmp_file()函数将攻击者控制的tmp_file值与WAZUH_PATH拼接时未进行规范化或限制，可能导致集群对等方利用路径遍历或绝对路径读取任意可读文件，进而伪造管理员REST API令牌并行使管理权限。

CVSS 9.1 · Critical EPSS 0.63% · P47

Affected Version Matrix 2

VendorProduct Version RangeStatus
wazuh wazuh >= 4.0.0, < 4.14.6 affected
>= 5.0.0-beta1, < 5.0.0-beta3 affected
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I. Basic Information for CVE-2026-48162

Vulnerability Information
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Vulnerability Title
Wazuh: cluster peer can read arbitrary master files and forge offline REST API administrator tokens via DAPI tmp_file path injection in Wazuh manager
Source: CVE Program / CVE List V5
Vulnerability Description
Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.0.0 until 4.14.6 and 5.0.0-beta3, DistributedAPI.send_tmp_file() in framework/wazuh/core/cluster/dapi/dapi.py joins an attacker-controlled tmp_file value to WAZUH_PATH without canonicalization or confinement. A cluster peer holding the shared Fernet key can use traversal or an absolute path to make the master return any readable file over the cluster channel. Reading /var/ossec/api/configuration/security/private_key.pem allows the peer to forge administrator REST API tokens offline and then exercise administrative privileges without creating an account. This issue is fixed in versions 4.14.6 and 5.0.0-beta3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
Wazuh 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wazuh是美国Wazuh公司开源的一款安全检测与威胁分析平台。 Wazuh 4.0.0版本至4.14.6之前版本和5.0.0-beta1版本至5.0.0-beta3之前版本存在输入验证错误漏洞，该漏洞源于DistributedAPI.send_tmp_file()函数将攻击者控制的tmp_file值与WAZUH_PATH拼接时未进行规范化或限制，可能导致集群对等方利用路径遍历或绝对路径读取任意可读文件，进而伪造管理员REST API令牌并行使管理权限。
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 >= 4.0.0, < 4.14.6 -

II. Public POCs for CVE-2026-48162

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Qwen3.6-35B-A3B · 11891 chars
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III. Intelligence Information for CVE-2026-48162

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Patches & Fixes for CVE-2026-48162 (2)

Vendor Advisories for CVE-2026-48162 (1)

Vendor Pages for CVE-2026-48162 (2)

Same Patch Batch · wazuh · 2026-08-19 · 13 CVEs total

CVE-2026-48024 9.1 CRITICAL Wazuh: merged-file header path traversal in cluster sync allows arbitrary file write under
CVE-2026-49441 9.1 CRITICAL Wazuh : peer-controlled metadata key in process_files_from_worker non-merged branch allows
CVE-2026-44901 8.4 HIGH Wazuh Cluster DAPI Protocol Deserialization of Untrusted Data Remote Code Execution Vulner
CVE-2026-41424 8.2 HIGH Wazuh: Privilege Escalation via Admin-Protection Bypass in update-user API Endpoint
CVE-2026-44252 7.7 HIGH Wazuh Manager dapi RBAC Bypass Allows Privilege Escalation
CVE-2026-46343 7.5 HIGH Wazuh: Arbitrary File Deletion via Cluster Protocol – Incomplete Path Validation in end_re
CVE-2026-45798 7.5 HIGH Wazuh: Pre-auth stack-buffer-overflow in compare_wazuh_versions reachable from wazuh-authd
CVE-2026-44254 5.3 MEDIUM Wazuh: Stack Out-of-Bounds Write in remoted Decompression Path
CVE-2026-44256 5.3 MEDIUM Wazuh: CRLF Log Injection via Unsanitized Basic-Auth Username
CVE-2026-44255 5.3 MEDIUM Wazuh: Username Enumeration via Timing Side-Channel
CVE-2026-49392 5.3 MEDIUM Wazuh: Local SQL injection in FIM db due to path lookup interpolation in wazuh-syscheckd
CVE-2026-44253 4.9 MEDIUM Wazuh: Cluster Protocol Memory Exhaustion (DoS) via unbounded receive_str allocation and d

IV. Related Vulnerabilities

Same product: wazuh
Same vendor: wazuh
Same weakness: CWE-73

V. Comments for CVE-2026-48162

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