High severity · published Oct 13, 2026
CVE-2026-74037
Wazuh 4.0.0 before 4.14.8 Session Invalidation Bypass in check_token
7.2
CVSS
0.5%
EPSS
No
On KEV
Description
Wazuh 4.0.0 before 4.14.8 fails to invalidate issued tokens for run_as users with zero static roles, because check_token never consults the blacklist. Attackers with revoked administrator grants can continue authenticating and self-link the administrator role to permanently retain privileged access.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WA
wazuh-manager · Wazuh
4.0.0 before 4.14.8 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74037
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-74037
vendor-advisory
https://github.com/wazuh/wazuh/security/advisories/GHSA-3xm6-wp5v-2fm9
patch
https://github.com/wazuh/wazuh/releases/tag/v4.14.8
third-party-advisory
https://www.vulncheck.com/advisories/wazuh-4.0.0-before-4.14.8-session-invalidation-bypass-in-check-token
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