Dashboard / CVE-2026-44255

CVE-2026-44255

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 71/100
Published: 2026-08-19 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: Low
I: None
A: None

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.0.0 until 4.14.6 and 5.0.0-beta2, AuthenticationManager.check_user() in framework/wazuh/rbac/orm.py performs check_password_hash() only when the supplied username exists. A nonexistent username returns immediately, while a valid username causes an expensive bcrypt calculation. An unauthenticated remote attacker can compare authentication response times to enumerate valid Wazuh usernames and use that information in subsequent credential attacks. This issue is fixed in versions 4.14.6 and 5.0.0-beta2.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
wazuh wazuh 4.0.0 – 4.14.6
wazuh wazuh 5.0.0

References & Advisories (5)

Bug Bounty Relevance

71 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

5.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS — Exploitation Probability

0.62%
Raw Score 0.006160
Percentile 49.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00616
2026-10-28
0.00616

Intelligence Sources

nvd ref →

External Links