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CVE-2026-54083— Wazuh: Path traversal in ip-customblock active response allows arbitrary file creation and deletion

Quick assessment

Affected
wazuh wazuh
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 是一个开源安全平台，为终端和云工作负载提供统一的 XDR 和 SIEM 保护。其 主动响应脚本存在路径遍历漏洞，允许攻击者以 root 权限在文件系统中创建或删除任意文件。 该脚本通过将警报 JSON 中的 字段直接拼接在固定的 基础目录上来构建文件路径，但未验证该值是否为格式正确的 IP 地址。由于提取例程直接返回未检查的原始字符串，能够触发包含 序列的 的精心构造的日志事件，攻击者即可逃逸出基础目录。其中，“block”（阻止）动作会以追加模式打开生成的路径，在任意位置创建一个空文件；而“unblo

CVSS 8.1 · High EPSS 0.33% · P26

Affected Version Matrix 2

VendorProduct Version RangeStatus
wazuh wazuh >= 4.2.0, < 4.14.7 affected
>= 5.0.0-alpha0, < 5.0.0-beta3 affected
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I. Basic Information for CVE-2026-54083

Vulnerability Information
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Vulnerability Title
Wazuh: Path traversal in ip-customblock active response allows arbitrary file creation and deletion
Source: CVE Program / CVE List V5
Vulnerability Description
Wazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads. The  ip-customblock  active response script contains a path traversal vulnerability that lets an attacker create or delete arbitrary files on the filesystem as root. The script builds a file path by concatenating the  srcip  field taken from alert JSON directly onto the fixed  /ipblock/  base directory, without validating that the value is a well-formed IP address. Because the extraction routine returns the raw string unchecked, an attacker who can trigger alert-matching log events with a crafted  srcip  containing  ../  sequences can escape the base directory. The block action opens the resulting path in append mode, creating an empty file at an arbitrary location, while the unblock action passes it to remove(), deleting an arbitrary file; since the active response daemon runs as root, this includes sensitive files such as system credentials and Wazuh configuration. Unlike the sibling scripts host-deny.c, default-firewall-drop.c, and firewalld-drop.c, which reject non-IP input via get_ip_version(), ip-customblock.c omits this validation. This issue is fixed in version 4.14.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
wazuh wazuh >= 4.2.0, < 4.14.7 -

II. Public POCs for CVE-2026-54083

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III. Intelligence Information for CVE-2026-54083

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Patches & Fixes for CVE-2026-54083 (1)

Vendor Advisories for CVE-2026-54083 (1)

Same Patch Batch · wazuh · 2026-08-27 · 6 CVEs total

CVE-2026-61800 9.1 CRITICAL Wazuh cluster worker file sync allows arbitrary file write under /var/ossec (incomplete fi
CVE-2026-54085 7.1 HIGH Wazuh: Missing input validation in multiple active response scripts allows argument inject
CVE-2026-61783 7.0 HIGH Wazuh: RBAC permission-effect check in mask_sensitive_config allows low-privilege users to
CVE-2026-61802 6.5 MEDIUM Wazuh discloses cleartext cluster key to low-privilege API users via GET /cluster/local/co
CVE-2026-54084 5.3 MEDIUM Wazuh agent enrollment NULL pointer dereference via malformed manager response

IV. Related Vulnerabilities

Same product: wazuh
Same vendor: wazuh
Same weakness: CWE-22

V. Comments for CVE-2026-54083

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