CVEvulnerability

CVE-2026-26206

6.5 MEDIUM Published 2026-04-29 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-04-29
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-307, CWE-362, CWE-367

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.

Affected configurations

• wazuh wazuh (>= 4.0.0 < 4.14.4)

Related

Weakness · CWE (3)

  • CWE-307 Improper Restriction of Excessive Authentication Attempts weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness
  • CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition weakness

References