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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
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.2%
Top 89.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

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

wazuhwazuh
Mixed
Security Products / siem-soar
WazuhWazuh, Inc
On-premSecurity Product
Security Products / vuln-mgmt-scanner
wazuhoss-projectSecurity Productsaka wazuh-manager, wazuh agent
wazuh, inccommercialSESecurity Productsaka wazuh

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

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

Timeline

Published
Apr 29, 2026
Last Updated
Apr 30, 2026

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