Vulnerability in Wazuh
CVE-2026-48162
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (49.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.007 · change: +0.001
Affected products
- Wazuh — versions >= 5.0.0-beta1, < 5.0.0-beta3, 5.0.0, >= 4.0.0, < 4.14.6
Weakness classification (CWE)
References
- github.com/wazuh/wazuh/security/advisories/GHSA-r6f5-h662-8ffc (Exploit, Vendor Advisory)
- github.com/wazuh/wazuh/pull/36246 (Patch, Issue Tracking)
- github.com/wazuh/wazuh/commit/de1eeedbe336744934be4e20d87d84a76e438cee (Patch)
- github.com/wazuh/wazuh/releases/tag/v4.14.6 (Patch, Release Notes)
- github.com/wazuh/wazuh/releases/tag/v5.0.0-beta3 (Patch, Release Notes)
Frequently asked questions
- What is CVE-2026-48162?
- CVE-2026-48162 is a critical-severity vulnerability in Wazuh, classified under External Control of File Name or Path. CVSS score: 9.1/10. Published 2026-08-19.
- How severe is CVE-2026-48162?
- Critical severity. CVSS v3 base score is 9.1 out of 10.