CVE-2026-74039Wazuh 4.0.0 < 4.14.7 API DoS via Deeply Nested JSON auth_context
Updated under an hour ago ()
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It affects wazuh-manager and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
Wazuh 4.0.0 before 4.14.7 and 5.0.0-beta2 contain a denial of service vulnerability that allows authenticated attackers with allow_run_as enabled to exhaust CPU resources by submitting arbitrarily deeply nested JSON structures to the POST /security/user/authenticate/run_as endpoint. Attackers can repeatedly submit malformed auth_context bodies with unlimited nesting depth to cause the API framework to consume excessive CPU, denying service to all other API consumers.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-770, CWE-1333
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Analyzed
- Record last updated
- Oct 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Wazuh wazuh-manager wazuh:manager (from the name) | from 4.0.0 before 4.14.7; 5.0.0-beta2 | CNA record |
wazuh wazuh wazuh:wazuh | from 4.0.0 before 4.14.7; 5.0.0; 5.0.0 | NVD |
References
- https://github.com/wazuh/wazuh/security/advisories/GHSA-5vh8-34r8-q74qvendor-advisory, exploit, mitigation
- https://github.com/wazuh/wazuh/pull/37034patch, issue-tracking
- https://www.vulncheck.com/advisories/wazuh-api-dos-via-deeply-nested-json-auth-contextthird-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.