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CVE-2026-26206

medium

Wazuh is a free and open source platform used for threat prevention, detection, and response.

Vendor / product: Wazuh — wazuh

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
6.5
6.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-04-29 19:16
Modified: 2026-11-11 21:10
NVD status: Analyzed
Last synced 5 hours ago
Verified against the source API 2026-11-11 21:11 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

wazuh / wazuh ≥4.0.0 <4.14.4

Weakness classification (CWE)

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://github.com/wazuh/wazuh/security/advisories/GHSA-m2mr-xhhv-jx58
Vendor advisory: https://github.com/wazuh/wazuh/security/advisories/GHSA-m2mr-xhhv-jx58

References

Data sources

NVD CVE API 2.0 — fetched 2026-11-11 21:11 UTC · record ↗

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