High 7.5Published Oct 13, 2026

CVE-2026-74034Wazuh 4.1.0 before 4.14.8 Arbitrary File Read via upgrade_custom Command

Updated under an hour ago (2026-10-19 08:30 UTC)

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It affects wazuh-manager. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.34%, higher than 26% of scored CVEs.

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Exploited in the last 30 days

Wazuh from 4.1.0 before 4.14.8 contains a missing origin check in wm_agent_upgrade that allows enrolled agents to issue upgrade_custom commands with attacker-controlled file_path. Attackers can inject an upgrade_custom message over the agent channel to read arbitrary files as root, exfiltrating /etc/shadow and client.keys.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.34% (percentile 26)
Assigned by: VulnCheck
NVD analysis: Awaiting Analysis
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 13, 2026

Affected products

Affected products

Wazuh wazuh-manager wazuh:manager (from the name)	from 4.1.0 before 4.14.8; 4.14.8 not affected	CNA record

References

https://github.com/wazuh/wazuh/security/advisories/GHSA-r7hm-43xr-477jvendor-advisory
https://github.com/wazuh/wazuh/releases/tag/v4.14.8patch, release-notes
https://www.vulncheck.com/advisories/wazuh-4.1.0-before-4.14.8-arbitrary-file-read-via-upgrade-custom-commandthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.