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CVE-2026-26206

Wazuh: API brute-force protection bypass via race condition in login attempt tracking

Published: Apr 29, 2026Updated: Apr 30, 2026 Sources: CVE List NVD BDUCWE-307
6.5MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 88.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.0.0 to before version 4.14.4, Wazuh's server API brute-force protection for POST /security/user/authenticate can be bypassed by sending concurrent authentication requests. Although the configured threshold (max_login_attempts, default 50) is enforced correctly for sequential requests, a parallel burst allows significantly more failed login attempts to be processed before the IP block is applied. This enables an attacker to perform more password guesses than the configured policy intends (e.g., 100 attempts processed where 50 should be allowed). This issue has been patched in version 4.14.4.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-307CWE-362CWE-367

Affected Products

Wazuh, Inc
commercial·SEaka wazuh
WazuhOn-premSecurity Product
Security Products / vuln-mgmt-scanner
wazuh
oss-projectaka wazuh-manager, wazuh agent
wazuhMixed
Security Products / siem-soar

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Credential Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/wazuh/wazuh/releases/tag/v4.14.4
github.com
https://github.com/wazuh/wazuh/security/advisories/GHSA-m2mr-xhhv-jx58
github.com
https://github.com/wazuh/wazuh/releases/tag/v4.14.4
github.com

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