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CVE-2026-74039: wazuh from 4.0.0 (inclusive), before 4.14.7 (exclusive), 5.0.0 · update beta1, 5.0.0 · update beta2; +1 more affected…
CVE-2026-74039. CVSS 3.1 base score 6.5 (MEDIUM, Vendor/CNA). EPSS 0.00555 (percentile 0.45469), scored 21-Oct-2026.
Affected technology
wazuh · from 4.0.0 (inclusive), before 4.14.7 (exclusive)
wazuh
wazuh · 5.0.0 · update beta1
wazuh
wazuh · 5.0.0 · update beta2
wazuh
wazuh-manager · 4.0.0 to before 4.14.7, 5.0.0-beta2
Wazuh
Description’s affected range: before 4.14.7 and 5.0.0-beta2
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · No user interaction required
What an attacker can do
Authenticated attackers with allow_run_as enabled can exhaust CPU resources by submitting arbitrarily deeply nested JSON structures to the POST /security/user/authenticate/run_as endpoint. Vendor/CNA’s CVSS 4.0 assessment (base score 7.1/10) rates confidentiality and integrity impact as none; availability impact as high.
- CWE
- CWE-770, CWE-1333
- CCR priority
- 26.1 /100 (P4)
- CVSS 3.1
- 6.5 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · Vendor/CNA
- EPSS
- 0.00555 · percentile 0.45525 · 2026-10-22
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-23 06:11:59.600832+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-23 06:11:01.814928+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-74039.html