Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-54083

CVE-2026-54083HIGH

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

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   L   N  U  N  H  H    8.1   .0057   45.1     —

AFFECTED
  Product  Versions              Fixed
  wazuh    >= 4.2.0, < 4.14.7 –  —

TIMELINE
  Jun 11  Reserved by GitHub_M
  Aug 27  Published (CNA: GitHub_M)
  Sep 15  EXPLOIT PUBLISHED — CVE-2026-54083 (wazuh). Public exploit reference added.

CWE-22 · CNA: GitHub_M · CVSS v3.1 · 2 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 11, 2026	Reserved	Reserved by GitHub_M
August 27, 2026	Published	Published (CNA: GitHub_M)
September 15, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-54083 (wazuh). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
wazuh	wazuh	—	>= 4.2.0, < 4.14.7	—

Weaknesses

CWE-22

References (2)

https://github.com/wazuh/wazuh/commit/e6ef99025b2ca4ba8003efb591c51545006bc2d4 [Patch]
https://github.com/wazuh/wazuh/security/advisories/GHSA-m4mf-qmhf-8vj6 [Exploit, Vendor Advisory]

Authoritative record: CVE-2026-54083 at cve.org

Vendors: wazuh

Weaknesses: CWE-22

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-54083 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.